How I tune a Benjamin Marauder for power.

[@ctjetskiclub772]

Man the least I can do is subscribe to your channel...your video was so detailed I did exactly how you explained and my new marauder .22 went from store/manufacturer mode to hell mode holy crap

[@Monkeydad1969]

@ctjetskiclub772 thank you very much! I really appreciate the comment and having you as a new subscriber. That is what I like to know when people use this video to tune their Marauder. What speeds and with what projectile were you getting before and after the tune?

[@ctjetskiclub772]

@Monkeydad1969 I don't have a chronograph but will be getting one this week but I have the swinging metal targets and before it was smacking them and they would move 5/6 inches on the swivel now they going completely around smacking twice as hard and this is a new marauder I just bought this week stock from manufacturer

[@Monkeydad1969]

@@ctjetskiclub772 cool beans. Looking forward to your results.

[@ctjetskiclub772]

@Monkeydad1969 hey buddy the only thing I did notice is when I did the 4 and half turns out for the transfer port screw when I re insert the jam screw I have to leave it loose like flush to the hole because if I keep screwing the jam screw in it will screw the transfer port screw down with it and will go to the bottom ...is that normal like the screw does not tight together with the transfer port screw.

[@Monkeydad1969]

@@ctjetskiclub772 put the velocity adjuster screw where you want it, then blue loctite the jam screw. Just butt it up to the velocity adjuster screw. That should fix that.

[@kirkgreenman1386]

Hi Joe, that tuning is solid. I have a 22 Marauder and hit a small stump and saw the impact, what a difference. My gauge was leaking and took the whole gun apart. So your tuning was a big help as I didn’t want to buy a meter. Thank You.!

[@cmburkhalter]

This gave me just the ‘umph’ I needed to start tweaking my .177 Marauder :). I’m using the 16.1 gr JSB Beasts and I was getting decent groups at 50 yards, but I could tell there was more available. I opened my metering valve about half a turn (total opened 1 3/4 turns from closed) and decreased the hammer spring tension about half a turn, now I’m stacking those Beasts every time at 20 yards and I’ve gotten down to 3/4” at 50 yards - very happy camper now. Thanks!

[@Monkeydad1969]

That's so very cool. Glad my vid helped.

[@andyhiggins8416]

Thank you for dumping this thing down I’ve messed with mine never really got it where I wanted to. Very precise a good explanation thank you

[@Monkeydad1969]

Thanks Andy. I hope you get your rifle going. Let us know.

[@andyhiggins8416]

Well I got all I could from it , it’s shooting 31 grain H&N @837 fps

[@Monkeydad1969]

@@andyhiggins8416 48fpe ain't no joke. Did you back off the velocity adjustment screw in the valve?

[@andyhiggins8416]

Monkeydad1969 yes & the 1/8 screw backed up all the way

[@Monkeydad1969]

@@andyhiggins8416 and did you back the hammer striker pin all the way back, then turn it in 3 times?

[@gunsaway1]

That is best video, text or anything I have seen for explaining how to tune my Marauder 25. Thanks a bunch. Great vid

[@Monkeydad1969]

Thanks gunsaway1. I really appreciate that and I'm glad you found it informative.

[@Narada65]

This is an excellent resource. Just making these fine tune adjustments on my factory .25 Marauder raised my velocity by over 70fps! Next I plan on doing the transfer point mod and that should put her right were I want her. Thanks so much for this video!

[@Monkeydad1969]

Really glad it helped.

[@BryanW0765]

Nice presentation sir! Just ordered a .22 Marauder and will be looking at your adjustments. Again…well done! Thank you.

[@Monkeydad1969]

Thank you, and congratulations.

[@ReidSartin]

Just got a Marauder and I needed this visual so I can increase velocity. Great video!

[@Monkeydad1969]

Awesome! Thank you!

[@TheDirtyvermonter]

Thanks man. Your video helped me fully power tune my .25 Armada. I'm getting some straight heat out of it now.

[@Monkeydad1969]

Love it. Now go shoot some more!

[@davida375AI]

Awesome and prefectly explained video. Had to subscribe after watching and listening to you. I'm going to be doing this to my .22 Marauder that's almost brand new, but waiting for my new handier (because of size) Garmin Chrono to get here first to get some before and after velocity numbers with it. (I've been in the shooting sports industry for 40+ years from a sponsered factory shooter in the early '90s, to live fire testing/engineering dept at Leupold, to testing writing for Barnes, to working for Nosler, .... but now getting so hooked on the air rifle aspect of the game now. (I'm sure within a very short time the FX Impact and other "items" will be things I can't live without.) Loving the freshness of the air gun thing since I don't see it as part of my work life. (Even though it really is.) This is going to be a good time! Keep this great content going. Great info with a perfect pace. Well done!!

[@Monkeydad1969]

Thank you very much for the kind words. I, too, am in the industry... airgun ammo. I use to be a trainer, so it came pretty natural. Yeah, airguns are a very deep hole. Welcome to the addiction.

[@donwilson350]

Hey I just like to say thank you for the marauder tune I got home and I was able to tune my Marauder 25 caliber the way you tune yours and the velocity went with a 26 grain pellet Predator polymag pellet I was getting 818 and that was kind of giving me around 37 ft lb now with your tune it jumped it up from 8:18 to 8:53 nearly across a 24 shot stream I think it the last shot it was it 848 so now I'm getting 40 to foot pounds so I went from 37 to 42 thank you very much

[@Monkeydad1969]

Very nice. Those are good numbers. I'm surprised the fps isn't higher. Hmm🤔. But still very nice.

[@williambourbeau4374]

Very well done! Gives those of us with less experience the confidence to take this on!

[@Monkeydad1969]

Thank you. Once you get started and practice safety, it's actually pretty easy.

[@biblejohn4681]

Thanks for the tips! I will be trying them out.

[@Monkeydad1969]

@@biblejohn4681 let me know how it goes. What caliber do you have?

[@randyburton3567]

Very good description and demonstration of what works... just picked up a 25 cal Gen 2 Amazon return cheap and started messing with it. I have already installed a huma reg and a twin hammer spring in it, so now on to the valve!

[@Monkeydad1969]

What pressure are you going to set the reg to?

[@randyburton3567]

@@Monkeydad1969 140

[@Monkeydad1969]

@@randyburton3567 cool. What are you going to do to the valve?

[@randyburton3567]

@@Monkeydad1969 I opened it up a good 6, maybe 7 turns and installed a twin spring system to help with hammer bounce. Right now I am not real happy with the setup. When I got the rifle. I could get 32 usable shots at 30 yards doing about 800 fps. After doing all the install and opening the

[@randyburton3567]

Valve up.. Best I could do was 800 to 810 over 16 shots. I don't mind the lower shot count. But expected much better speed.

[@markcain8029]

What a great video! I am new to the PCP world and we appear to have the same philosophy -- Shoot with lots of power and FPE. I have a Benjamin Marauder .177 Gen 2 and the AirForce Escape in a .25 cal. I will be surfing your channel to glean as much info as possible. Thanks again!

[@Monkeydad1969]

Thanks Mark. Yeah, I'm the worse at putting out vids. But I will have some coming out soon. Mostly catch up from vids past. I have a couple builds that should be finished soon and I love my .25 Escape and .257 Escape. I like power but I'm really into getting power with minimal air usage and a good shot count. I've started to do less psi fills and getting serious power. That's especially true of my .25 Escape. 2400-2600psi fill, 30 shots with a lot of power and I haven't touched the power wheel. It's set on the lowest setting. Tuning is key and a chrony is essential.

[@kj970]

This made all the difference for me. Saved me from sending it away. I learned a ton. Thank you

[@Monkeydad1969]

J D you are welcome. Glad it saved you time, money and a headache. Lol

[@NotEvenDeathCanSaveU]

the same here.. my .25 was underpowered shit from the factory where I couldnt hit shit at 100 yd and now after playing around with the setting I am getting around 2 inch groups at 100 yd what is in my eyes insane.. never had anything anywhere near close to this performance and considering its like cheap marauder a good bang for the buck and not some FX stuff I am really amazed

[@panchopachangas4450]

Thank you very much sir! You are the man! Got my .25 shooting 26gr Nielsen’s between 765-780.

[@Monkeydad1969]

Cool. Now tell me how good those groups look. 😎

[@panchopachangas4450]

@@Monkeydad1969will do! I don't have much of a yard but I can probably do 25 yards. Trying it out today after work.

[@Monkeydad1969]

@@panchopachangas4450 hey, 25yds is better than what most people have.

[@panchopachangas4450]

@@Monkeydad1969 very true.

[@paulineroyadair3505]

Thanks you are a lifesaver I have bean trying to find out how to tune my Armada witch is the same as the Marauder . Now I can shout out to 200 yards with the relater seat at 2400 psi . Thanks for the no non cents Video. Roy

[@Monkeydad1969]

I'm glad it helped you. That so cool to hear.

[@KingLoobrok]

Hi Pauline your Armada is .177 or .22?

[@dwaynesimms9039]

Thanks a million bro, I got my Benjamin Armada.22 shooting the 29 grain piledrivers at an average of 930 fps that's over 53fpe out of a .22....

[@Monkeydad1969]

That's fantastic. Now go git 'em!

[@kturbo504]

Is that with just hammer adjustments and no other mods?

[@bencematyasmarton559]

Great vid and explanation. Now I can easily tune my .22 Marauder.

[@Monkeydad1969]

Thanks

[@bencematyasmarton559]

@@Monkeydad1969 Can you give me any tip on how I could check the velocity/power without a chrony? Shooting at plywood from a certain distance and measuring the penetration doesn't feel very professional but I don't have a better idea at the moment.

[@Monkeydad1969]

@@bencematyasmarton559 that's a hard question to answer. The only thing I can say is shoot at the board first, measure the penetration. Then tune your rifle for more power, shoot at the board again and measure that penetration. Having a chronograph is imperative to rifle tuning. I do understand, not everyone has one. It's another cost. Also, depending on what projectile you're shooting, the penetration into the board may not show any difference between a non tuned and tuned air rifle. If you're getting over a quarter inch of penetration then you're probably doing fine with the power. Accuracy trumps all regardless of power.

[@AlexanderBushi]

Thank you for sharing. Regards.

[@Monkeydad1969]

Thanks for the comment. I hoped my video helped you.

[@old-timeangler5356]

I have a .22 cal MRod and found your video very interesting and will give mine .22 a few adjustments as you have explained, thank you.

[@Monkeydad1969]

Cool. I hope to hear about your results. Have fun.

[@shawndubay4050]

Thank you for a great video. Alot of great guidance. I will definitely be following this when I get my marauder up and going. As with all my airguns maximum power and accuracy are #1.

[@Monkeydad1969]

Thanks Shawn. Let me know if I can help.

[@shawndubay4050]

@@Monkeydad1969 will definitely do when finances allow me to get all the parts. On survival mode for a bit. Thank you my friend.

[@noride11]

you da man!! The visual learner in me thanks you!

[@Monkeydad1969]

Thanks. Your comment means a lot.

[@matthewkirk514]

I have been wanting to do this for a long time and I just got it done. I was going to adjust everything you did but after I got done with the transfer port I was already faster than I thought I would be. Started at 866 FPS ended at 922 FPS in .22 cal jsb 14.3 time for a heavier pellet so I can finish the toon. Thank you

[@Monkeydad1969]

Very cool. Congrats and have fun.

[@Monkeydad1969]

@Ordinary Average Guy cool. You looking for more energy?

[@Monkeydad1969]

@Ordinary Average Guy looking forward to the results.

[@Monkeydad1969]

@Ordinary Average Guy wow, you too... Lol. They have been coming in. Just had been a very interesting year. We're sold out till 2022, easily and JSB is sold out till 2023. Yeah, it's been a year. 👍🏾

[@OoheavysackoO]

Superb video brother. Do you know if the same steps can be taken for the Field and Target version?

[@Monkeydad1969]

I've never had my hands on one, personally. I have a friend who had one, and because of Benjamin's regulator, he says they don't get much more power out of them.

[@OoheavysackoO]

@@Monkeydad1969 Thank you for the reply sir, it's appreciated.

[@Monkeydad1969]

@@OoheavysackoO I just need to be a bit more proactive on my channel... 😆

[@romeoalphafoxtrot9517]

Outstanding video! Well done! I have a new Synrod .25 on order. I will try out some of your mods. Thanks!

[@Monkeydad1969]

Thanks Robert. Have fun.

[@bleakleycj5]

I've watched so many tuning videos. Nobody has hit on every point the you hit on. I had no idea how important the transport port was for velocity nobody really explained how important that was they would just glaze over it or say you wanna back it out a little bit that's it that's all they'd say. Thank you good video 3

[@Monkeydad1969]

Hey Jayson. Thanks a lot for that. I was asked by a FB bud to do a vid, but I wanted to put it out there for other M-Rod owners. I too had the same issue with trying to find a good tutorial vid. So I really hope it helped you.

[@michaelcarey3105]

Good, informative video! I don't trust myself to do this procedure but I like seeing it done!

[@Monkeydad1969]

It's easier than you think.

[@krlossires]

Very nice thanks for the video. Armada here I go with your tuning. Thanks again.

[@Monkeydad1969]

As long as it helped. That was my goal. Thank you very much 😊

[@LeoHeiland]

Great overview and guide. Thanks.

[@Monkeydad1969]

I hope it helps.

[@tomatepintor6203]

Gracias por la información, En crosman venden el regulador para el marauder generación 1. ??

[@Monkeydad1969]

No they don't, you can get a Huma or Lane.

[@mellemauotord725]

Great vid man. gonna tune my .25 now. Thanks for great advise!

[@Monkeydad1969]

Thanks. I really hope the vid helped.

[@sergeiklimenko9247]

Really helpful video. I will try soon.

[@Monkeydad1969]

I hope it helps, please let me know how it goes.

[@sergeiklimenko9247]

@@Monkeydad1969 ок, but I am Russian, so sorry about my future language. In Russia we have some very good air guns, you can also buy it here, but they more expensive. for example Ataman, Leshiy. But they are really powerful 💪🏻 It will be my next rifle😀

[@sergeiklimenko9247]

Maybe we can go shoot together, I live in Miami.

[@Monkeydad1969]

@@sergeiklimenko9247 I was in Palm Beach last October to hunt iguanas. It was very fun.

[@sergeiklimenko9247]

@@Monkeydad1969 is it legal?

[@timmy4539]

Hey Joe I know that this is a bit older video but if you're still out there i have something to ask if I may ? Can you adjust the hammer spring and the hammer throw without opening up the pin in the valve ?? And if I adjust the hammer throw all the way out to start with like you did is there a positive stop or will it back all the way out like you said it will if you go all the way in with it ?? And does the hammer spring adjustment stop when you back it all the way out or will it come out of the gun ?? Any help you could give me would be greatly appreciated !!

[@Monkeydad1969]

The RVA, rear velocity adjuster or hammer spring adjuster will stop when you go CCW (counter clockwise) until it stops. It will come off the threads if you go clockwise all the way. The hammer throw (striker) will hit the face of the hammer when you go fully CCW, but it can come off the threads if you you go too far clockwise. You don't need to adjust the velocity adjustment pin when tuning with the hammer spring and/or the hammer throw...just be aware you will limit the tune if tuning for huge power gains.

[@timmy4539]

@@Monkeydad1969 thank you Joe !! 👍👍

[@Monkeydad1969]

@@timmy4539 hope that helps.

[@timmy4539]

@@Monkeydad1969 hey Joe just one more thing if I may ? With this tune work on the field / target to ??

[@Monkeydad1969]

@timmy4539 well, being that the Field and Target is regulated, your mileage may vary. The nice thing is that it will be consistent, but you will not get any huge power gains.

[@macholinmartinez8412]

i had totally hosed my woods walker and used these tips ,,,,now im shooting again and getting squared away !!

[@Monkeydad1969]

Cool. I never thought about the P-rod when I did this vid. Good on you. How is it shooting for you?

[@timmy4539]

Hey Joe I did your turn on my field / target but I have something to ask can you adjust the hammer spring with the gun cocked ?? I adjusted the sticker with the gun cocked and forgot to unlock the gun before I adjusted the hammer spring !!! Am I good to go or do I have to readjust the hammer spring again with the gun uncocked ???

[@Monkeydad1969]

You can adjust the hammer spring while it's cocked, but I always adjust my hammer spring when the rifle isn't cocked. It's just easier to do while it's not under load. Now, if I don't have a long enough Allen key or screw driver, I adjust the striker with the hammer cocked.

[@timmy4539]

@@Monkeydad1969 thank you Joe ! I did not have any problem adjusting it at all when it was cocked ! I appreciate all the advice !! 👍

[@goatfarmindia3415]

hello, video is really good Explained. I want to know what was fps previous and after tuning the gun what was fps in. 177 cal

[@Monkeydad1969]

That .177 was about 876fps/36fpe before, after it was 946fps/42fpe. Now it's 1000fps capable with a JSAR (Jefferson State Air Rifles) valve and polyurethane hammer.

[@Monkeydad1969]

@Werner Voss if you power a M-Rod up and shoot light, sure. But realistically, you wanna shoot a good weight projectile, at a good speed. Have fun and thanks for the comment.

[@Monkeydad1969]

@Werner Voss a few springer makers do that for sales. It's unfortunate.

[@Straight2itENT]

I thought the baby crying at 3:20 was my son waking up from his nap! 😂

[@Monkeydad1969]

I honestly don't know what that was...lol.

[@saviofalcao670]

Hi .buddy thanks a ton ..complete guide to tune the marauder

[@Monkeydad1969]

Glad I could help.

[@roderickthomas3417]

Hey brother very good video! You didn’t talk a lot. What’s the max fpe can the marauder achieve with how you tune or what’s the max fpe that can be achieved!

[@Monkeydad1969]

Depending on caliber and projectile weight, tube pressure... you can get 45fpe pretty easy in .25. It's been so long since I've shot a stock rifle, all of mine are modded. I do have a stock .25 M-Rod, it's regulated. Guess I need to remove the reg and see what I get. I wanna say I've made up to 50fpe in a stock .25... but I really like to do a little valve work and open up the barrel port for better results.

[@roderickthomas3417]

@@Monkeydad1969 of course. See the reason why I’m concerned about power is because I’m so use to how I have my .177 break barrel. It shoot like a 22-short. I DO NOT SEE THE PELLET OR SLUG N THE AIR! That’s what I’m use to! I realize that for the power I’m use to dealing with I need to upgrade to a pcp which can be easily modded and not a hassle to tune! I’m looking for the key ingredients; new plenum, and other adjustments that can yield 1080 or 1200 fps in .25 cal at least around 26-30 gem slugs🤷. I am looking at the Avenger-X and the Maurauder in .25 cal! The Avenger -X have so many mods. But I’m an old Benjamin buff from back in the 80’s and I wanted to compare and see which is easier to tune and which one can yield the most power and is it possible to put a. Otto’s on a mairauder? Or is that what the Cayden is for (it has a bottle)?

[@Monkeydad1969]

@roderickthomas3417 1200fps in .25 is not an easy feat, even with all the tech in pcp rifles. On your .177 break barrel, what weight pellet are you shooting? Idk much about the Aveng-X. It has a lot of tunability. The M-Rod lacks the reg. A Cayden to me isn't the best platform for power. Also, there are other brands that are more than capable of getting you where you wanna be, as long as you have the money to spend. To be honest, I think for power and accuracy, you can't go wrong with the AirForce Condor or the AEA Challenger Pro. I have both, and they are amazing.

[@dustintaylor2997]

Can all of this be done with the chamber under a charge. What a great informative video. Thanks

[@Monkeydad1969]

Yes it can. But if you want to err on the side of safe, you can depressurize the tube.

[@barttate3228]

Great video the best part is you answer questions you don't just talk you get to the point probably the best one out there but I have a question I am trying to tune a new 22 marauder to get about 933 feet from the present 843 feet and not lose my accuracyGreat video the best party as you answer questions you don't just talk you get to the point probably the best one out there but I have a question I am trying to tune a 22 marauder to get about 933 feet from the present 843 feet and not lose my accuracy any tuning points you could give would be great if you worked with a 22 Mirador thank you any tuning points you could give would be great if you worked with a 22 Mirador thank you

[@Monkeydad1969]

What pellets are you shooting or do you want to shoot? Are the pellets or slugs you shoot accurate out of your rifle? You may have to do some modifications to your rifle such as valve work or a new more powerful valve, utilize a heavier hammer spring to get that speed, depending on the weight of the projectile. Please let me know.

[@barttate3228]

Right now it shoots everything i have put in it. a hole at 10 yards 10 round group even the 10 dollar 500 benjamin pellets .tryed about 6 brands of pellets ,this is the problem i do not want to lose the accuracy for the power , but i would like it to get 933 an keep the accuracy . everyone tune no one shoots groups please shoots some groups , as for as the pellets im up to shoot what ever it takes ,but i hunt with this gun .Thank you for your help

[@Monkeydad1969]

@@barttate3228 933fps is a lot of speed. But if your barrel is good, then accuracy shouldn't be an issue. Just for the speed you want, you're going to have to do some work. I suggest a Jefferson State Air valve or the Hill valve. The Cothran Powerhouse valve is was powerful, just to much for .25 caliber. I'm really bad about shooting groups and even worse when it comes to KZbin. But you're right, I need to shoot more groups.

[@barttate3228]

@@Monkeydad1969 yes you are please shoot some groups thanks so much for yor help

[@joed4303]

Hi! Thank you for the great video. I tuned my .22 cal Benjamin Marauder (gen 2/synthetic stock) as specified in your video. I haven't had a chance to chrono it yet or conduct an accuracy test with the new settings. So I'm looking forward to that! My question is, do you find the sweet spot for how much air pressure you fill the rifle to changes with tune settings? What about the guns preference for pellet make/model? The reason why I ask is, my gun liked exactly 2,600 psi, and with shooting H&N terminators, (16.36gr) I could get around 769 fps, and at 35 yards I could get a three shot group with all three holes touching. I'm curious to see if my rifle will now like a different air pressure charge and also pellet type. Thanks again and looking forward to your insight.

[@Monkeydad1969]

Rifles like to shoot what they like. At any tune a projectile may shoot different than before. Generally, if a rifle shoots a particular pellet well, than it usually stays the same. The tune I showed is for power so expect an increase in speed. You may find yourself needing a different pellet. Maybe even a heavier projectile. This is when you will have to start testing. Things will change in one way or another. The hope is that you'll get 2 magazines with a speed increase, and accuracy.

[@joed4303]

@@Monkeydad1969 thank you!

[@bobwershing3505]

Very Good Explanations 👍

[@Monkeydad1969]

Thank you. It was my hope that it came across that way.

[@drizzy2110]

What hammer/spring setting do you have for your 25 cal marauder and also what settings on your reg do you have and what cal slugs are you using I got a tj standard length barrel my huma reg is at 145 bar and my pellets are 25.4 grain fx pellets I want to shoot slugs now that I got a new barrel please please help me

[@Monkeydad1969]

When I did this vid, my .25 was setup for power and 2 full magazines. I had the spring 3 turns in clockwise (from a starting point of it being backed out fully counter clockwise), the hammer striker was 3 turns from flush also...for more hammer travel, the velocity adjustment screw on the right side of the tube was fully backed out 5 turns counter clockwise for full air flow through the transfer port. I was using a Lane regulator set at 2050psi, averaging 858fps for 42fpe with the JSB .25 Kings 25.39gr.

[@topdragster365w]

Great video explaining Great job sir

[@Monkeydad1969]

Thanks troy w.

[@macholinmartinez8412]

Nice ,,,nice well explained,,,good stuff!! thanks i'm a newbie,,,this was lots of help!!

[@Monkeydad1969]

Cool beans. Hope you're out there shooting your rifle and getting the results you wanted

[@edricheson]

Your going to laugh, I did exactly what you said and cracked to stem. Haha I was so frustrated, but, but you forced me to open the gun up and clean the whole thing which I thank you for. I was deathly afraid of taking it apart, because I am always missing something when I put something together. I think what I’ll do is slowly adjust it on the Chrono and see what I like. Thanks for the info

[@Monkeydad1969]

@@edricheson now you know how to tear apart the P-rod and the M-Rod. Glad you're learning. I did giggle a bit. How did you crack the stem?🤯

[@edricheson]

Monkeydad1969 I don’t know at all. It is a factory gen 2 .22cal. I did exactly what you said, to the tee

[@edricheson]

I think I’ll do half of what you said as a starter, but it really comes down to me tinkering with it like I’m sure you did

[@topdragster365w]

Have ? For you. I bought seal kit put new seals on the valve lube it good and the tube threads but insert it in slow n easy evenly but there couple tiny pieces of seal Is that normal. Thanks

[@Monkeydad1969]

The gauge hole in the tube is probably catching the o-rings as they pass over. When you insert the valve and gauge block and get to the o-rings slowly push them over and use a small rounded pick and gently push on the o-ring as it passes. Put more silicone on the o-rings as they pass. Also, when you take the rifle down, and the tube is without the internals, smooth down the gauge opening, the openings for the bolt, sear, all the openings. Get a ball hone and smooth the entire back end of the tube where all the punched openings are. Get a ball hone with a fine grit.

[@sf7708]

A Harbor Freight magnetic tray does a wonderful job of keeping small metal pieces in place. Will these mods work on the semi automatic Benjamin? Nice review, thanks for taking the time to share!

[@Monkeydad1969]

Yes they do. I had one, but was no real need for it during the vid. But, no this won't work on the S.A.M.

[@airgunsofidaho4886]

Is it possible to produce 30-33 foot pounds using a 30cal huma regulator and a power house valve? I am having a hard time getting the .177 15gn slugs up to 950-1000 fps with my benjamin marauder. 177cal. I have a 20 inch barrel. Any help would be appreciated

[@Monkeydad1969]

I got over 40fpe with a .177 Marauder shooting 21gr Piledrivers and 19.5gr Varmint Knocker slugs. I opened the ports on the barrel and valve and put a softer valve return spring in it. With the .30 Huma and the same work I did, I don't see why not. The only issue, and don't tell Don I said this, the Powerhouse valve for the Marauder in anything less than .25 isn't what I would use. It's made to push more air than the .177 can take. You will just choke the valve out. Even with the reducer Don sends with it. The .30 Huma barely has enough plenum for the Cothran valve. I'd say go with the stock valve. If you're not afraid to open the ports, then open the barrel and valve to .156. Hell, send it to me and I'll do it for you. You also need to increase your hammer throw by backing the striker all the way back to the hammer face. I'd also back off the hammer spring (counter clockwise) then turn it 3 full turns clockwise. Also, make sure to clean up the ports once you've opened them and definitely polish the lead in, polish the valve port too.

[@airgunsofidaho4886]

@@Monkeydad1969 thanks Joe. I'll test out the stock valve and make a longer stroke on the hammer. Do you think the power house valve would work better with heavier. 22cal slugs? Like 30gn +

[@Monkeydad1969]

@@airgunsofidaho4886 Like I said in my reply, anything less than .25---actually---anything less than .30 I would not use a Powerhouse valve for. It just flows too much air. Even my .35 bottled M-Rod regulated at 1600psi I'm pushing the .35 Polymags at 900fps/146fpe. It's just too powerful for small bore Marauders. Now if you were using his Discovery Powerhouse valve, then yes...I would do .172 (yes .172), .177, .22, .25, maybe .257. I have built a bottled 2260 in .177 using the Disco Powerhouse valve and it's a mean rifle. I should also say this...I have my .177 M-Rod pushing a lot with the JSAR valve. NO hammer spring tension, and full hammer stroke. It is 60fpe with 19.5 grain Varmint Knockers. Yes, my barrel port is .156. So once Matt gets everything set at JSAR you may wanna talk to him. Side note, just cause I brought it up, the M-Rod Powerhouse valve may be really nice for a .257 build...hmmmmmmmmm.

[@airgunsofidaho4886]

@@Monkeydad1969 I'll test the stock valve for now and maybe upgrade to the jsr valve in the future. I was building a benjamin discovery 22 but the way it was built i couldn't put it to get there. Haha 😄 I didn't realize a few things before I when to put it together.

[@Monkeydad1969]

@@airgunsofidaho4886 Discos are easy to build. Just do it! 😎

[@ianprice9376]

Sweet dude good break down. Like the video. More please.

[@Monkeydad1969]

Thanks Ian. I'll be the first to tell you that I suck at putting out or even doing vids. But I do have plans to put another vid or two out soon. Again thank you for your comment.

[@Gunner-ll1zd]

Awesome instructional video

[@Monkeydad1969]

Matthew K thanks. I hope it helps fellow airgunners.

[@dishpan22]

Enjoyed hearing what one does for a power tune. I see a lot of the parts houses have stiffer hammer springs for sale but maybe they aren't needed? What do you think of hammer debounce setups are supposed to save air and reduce noise? Thanks for taking the time to do a great vid that helps us all!

[@Monkeydad1969]

I've never used them. Not saying they don't work, but not for me. Joe Brancato installs them on the M-Rods he sells, so there may be something to them. Stiffer hammers are useful. Say with the stock valve and you want the power without spending a lot or with little effort. Air consumption is an issue then. If using aftermarket valves, my favorite being the Cothran Powerhouse valves---the first balanced valve, then a stock spring is amazing. But balanced valves like the Cothran or JSAR are a different vid altogether. Those are made to produce raw power.

[@superskays]

Awesome video sir.. I own the Benjamin Marauder Woodsman (pistol / carbine) Model in .22 cal Would this adjustment still be applicable with the shorter barrel ? Thanks for your videos they are very informative and to the point

[@Monkeydad1969]

Yes, it should work for the P-Rod, too. Thanks for the comment.

[@superskays]

@@Monkeydad1969 thanks for the fast reply and please keep up the great videos

[@Monkeydad1969]

@@superskays thanks. But I'm so very bad with making content. I only did that vid to help a friend out. Lol Take care and Happy Holidays!🎁🎄🎅🤶🦌

[@superskays]

@@Monkeydad1969 well you did a really good job.. I didn't have to watch it 3 times to comprehend it lol.. Happy Holidays to u also my friend

[@Monkeydad1969]

@@superskays let's just hope 2021 isn't a major suckfest... 😆

[@ManCaveTVWest]

Great video. Big thumbs up

[@Monkeydad1969]

Thanks a lot. I appreciate that.

[@ManCaveTVWest]

@@Monkeydad1969 No problem bro. I'm currently tuning two of my Marauders for a little more punch. Your video has been the most helpful!

[@Monkeydad1969]

@@ManCaveTVWest well I'm looking forward to your results.

[@ranhat2]

(Good lighting, bravo.) Hey--nowhere anywhere is explanation of why to adjust #1 the hammer and #2 the other adjustment --when #3 adjustment, the velocity adjustment, seems like it would do all that is needed???'? OR: why use the velocity screw at all, when the other settings seem to change air charge and presure therefore velocity! ????

[@tropicthunderbolt]

That camera mount set up. Where's it from or what's the name of it.

[@Blackscoutwinter]

My .22 Armada always had an issue. It shoots great but sometimes it shoots a dud and pellet goes like 50 foot or magazine has to be taken out to shoot out the pellet. Any thoughts? Changed the breech O-ring several times but still does it? Took apart once and change the transfer port seals once and another o-ring but no luck. What you think? Thank you.

[@Monkeydad1969]

Sounds like the valve not opening up fully. Is the hammer sticking a little? What are your settings on the rifle? Have you taken the valve out and/or done any mods to it? Hammer spring ok?

[@Blackscoutwinter]

@@Monkeydad1969 striker pin all out then 3 turns in. The hammer spring about 4 turns on and valve port screw 4.5 turns out from the bottom. I did order a Hill valve pin and transfer port piece and new seals. Guess needs a full overhaul

[@Monkeydad1969]

@explorersepro I'd be interested in your stock valve... to see if it is the issue. I don't think your seals are the issue. Have you noticed when you cock the rifle the efforts seems a lot easier or if it feels like it's binding?

[@Blackscoutwinter]

@@Monkeydad1969 cocking has never been real smooth. The last bit I guess seems a little binding maybe.

[@Monkeydad1969]

@explorersepro ok, that helps. Try a new hammer spring. Look at your hammer and the area of the tube where it slides. Check for any wear marks. I suggest polishing the hammer where it contacts the tube and getting a ball hone to polish the tube where the hammer contacts it. Also, pull your bolt and see if it has wear marks and if it feels like there's grit on it. Check the breech, too. I've had to take very fine grit sandpaper and clean up my bolt and the breech where it slides because of the same issue when I cocked my rifle.

[@David-jv2pu]

Very informative - I have a GEN 2 - synthetic .25 Marauder. I have upgraded the hammer spring to a "hill airgun 262 Hammer spring" and leaving everything else stock. I have set the adjusters the way you suggested, i.e. velocity pin all the way out, 5 turns out from the bottom of the hammer spring adjuster hex nut and 3 turns out from the bottom of/on the hammer pin hex nut. Do you recommend these same settings with a heavier spring?? I do not have a chronograph yet and want a "heavy/hard hitter" to get going to exterminate my squirrel problem. Also, have a Hawke Airmax scope and an AirVenturi Nomad II compressor.

[@Monkeydad1969]

That Hill spring is a good way to go. Chrony it and see where it's at. I like power without a huge amount of cocking effort. Depending on what you are trying to achieve with fpe, you may find that you can back off on the adjustments. But if you're just knocking down squirrels you don't need a lot of speed. Heck I kill P-Dawgs at 100yds at the mid 800's with my bottled M-Rod. Please keep me in the loop on your progress.

[@seanmobley4253]

@@Monkeydad1969 i did the same thing to my mrod .25 cal. backed the velocity pin all the way out 5 turns, im using the hill peek striker and its all the way to the base as per instructions. im 6 turns on the spring tension, 8 turns on tension spring drops the tensioner off threads. shooting the 47gr varmet knockers 667fps and with jsb exact kings 25.4 857fps. nead a better scope. looking into the crimsom single plain moa..

[@Monkeydad1969]

@@seanmobley4253 I'm surprised the Kings aren't in the 900's. The important thing, question is...are you happy with the tune?

[@seanmobley4253]

@@Monkeydad1969 not really, my brother has the same mrod with stock everything but with hill longer shroud, and is shooting better fps than i am.we did not change stock settings i need to be pushing that 47gr @ 850fps and i think it can be done. im planning to purchase the hill max valve and breach port to increase fps. so my brothers mrod being stock is getting 900 fps with a 2900psi fill. so somewhere im loosing power or air.

[@Monkeydad1969]

@@seanmobley4253 so your brother is shooting the Kings at 900fps, and what tune did he do?. Can you feel air coming from under the breech when you shoot?

[@ironmanhiggs]

I know rhis is old but just bought the .22 marauder semi auto. Its in the mail but will this work on a semi auto version?

[@Monkeydad1969]

@ironmanhiggs congrats on your purchase, but idk. I don't have one and I've never handled one. 2 different beasts.

[@ironmanhiggs]

@Monkeydad1969 ok it's cool figured I'd ask. Thanks

[@Monkeydad1969]

@@ironmanhiggs maybe I'll get one and see for myself.

[@garydcall9644]

Joe, Got a gen1 .25 Marauder. Are you shooting slugs? If so, what brand. Just ordered a .25 pellet pak from Straight Scooters. Waiting for some warm weather here in zip code 14143. Thanks for your instruction. Gary Call

[@Monkeydad1969]

I haven't shot to many slugs through my .25 M-Rod. I haven't tried the the KnockOut slugs yet, but I have shot heavy pellets (JSB and Eunjin---Seneca) and they all did real good. I think the NSA may be a good choice. Now I need to get some .25 slugs and see.

[@garydcall9644]

Joe, I have had a real problem chambering the Fx 25 slugs in my Marauder. The shoot really well though. Let me know if you experience any chambering issues. Shoot straight. Gary

[@Monkeydad1969]

@@garydcall9644 I haven't shot the FX slugs, I did shoot the JSB KnockOuts and they loaded fine. They shoot ok, but the JSAR valve I was using had a bunch of gunk in it and I had to clean it. I haven't tried since. I've been getting all my long range shooters ready for the p-dawgs.

[@rdbjr52]

Just subscribed. Thank you for this terrific video.

[@Monkeydad1969]

Thanks. Now if I just got off my arse and did more. Lol

[@garysteven615]

Love that stock. Where did you get it? Thanks . Gary

[@Monkeydad1969]

It's a Teryx, unfortunately they're not made anymore. I'm lucky to have 3 and each one is on a rifle.

[@airgunspestingch.8426]

👋🏾 have a 177 25 Mrod gen 2 both are regulated that need a better tune going to be working on the marauders soon and this video helps out thanks

[@Monkeydad1969]

Can't wait to see your results.

[@tankdeezel76]

Life Changing

[@Monkeydad1969]

Maybe. 👍🏾

[@drizzy2110]

What fps would you use on 35 grain slugs on benjerman maraider 25 cal I just got a cronopgraph and don’t know a good fps for it and I also got a 22 twist rate stock length tj barrel stock hammer spring and hammer and valve

[@Monkeydad1969]

Well, first make sure the slug is accurate out of that barrel. Then do chrony work. Tune the slug and barrel to the speed in which the accuracy is best. Speed can kill, and I'd rather have accuracy over speed any day. Basically I can't tell you a definite speed without me actually shooting your rig with that slug. I can throw a number at you, try low 900's to mid 900's then go from there. What are the going to use the rig for hunting or punching paper...under 100 yards or really stretching it out?

[@drizzy2110]

@@Monkeydad1969 I’m using it for hunting like 70 yards max for the ground squirrel and also I just know your the only person I know with 25 cal slugs that post vids so I came to you for help also I wonder what a stock valve and spring can shoot out of marauder I just want best fps for stock marauder besides the ti barrel I have it is stock

[@Monkeydad1969]

@@drizzy2110 ok. But I haven't posted any vids with .25 slugs. I'm not that com 🤣. You definitely need to do some chrony work and see what speed they are most accurate at. What is the grain weight and what slugs are they?

[@anthonydefillippis8806]

My hammer adjuster keeps coming loose. Any suggestions? Thanks Joe!

[@Monkeydad1969]

Are you taking about the hammer spring adjuster or the hammer strike pin on the actual hammer? If it's the spring adjuster is the spring the stock spring or a softer spring? How often do you adjust it? Does the adjuster have any play in it when you make adjustments? If it's the hammer striker pin, is it loose when you make adjustments? You may have to take the rifle apart and put a little blue loctite on the threads. Just make sure you have it set to where you want it. You can always use a dab of loctite on the hammer spring adjuster to keep it in place. Also, the loctite will still let you adjust the hammer spring w/o any issues and it will still keep the adjuster set where you leave it. If any of these parts still give you issues, you can always order replacement parts. Let me know...

[@anthonydefillippis8806]

Not the strike pin and yes it’s a softer spring from Tim Hill. I’ll try the loctite. Thanks!

[@Monkeydad1969]

@@anthonydefillippis8806 ok. Don't go crazy and please use the blue loctite. That softer spring may not have enough tension to keep the adjuster in place.

[@timmy4539]

Hey Joe does it matter if the air pin jam screw is even with the outside of the valve or can it stick out a bit past the valve ?

[@Monkeydad1969]

I have it flush, and it is clear of the exhaust port on the valve.

[@timmy4539]

@@Monkeydad1969 ok thank you . But what if I back my air pin out 4 or 5 turns and when I put the jac screw back in it sticks out a touch ? Do I turn the air pin back in until I can get the jam screw to sit flush with the outside of the valve ??

[@Monkeydad1969]

@@timmy4539 Yes. Just turn the velocity adjustment screw in until the jam screw is flush or just recessed. I'm surprised yours is sticking out on 4-5 turns out.

[@timmy4539]

@@Monkeydad1969 I'll check it again Joe ! Thank you for all the help ! I did your full tune on my 25 cal Marauder but I'm still only getting 811 fps out of it ! 🤔

[@Monkeydad1969]

​@@timmy4539it could be anything. Hammer spring may be getting weaker. Is your M-Rod regulated? What projectiles are you shooting? Of course it would be nice to actually see your rifle. What did you actually do when you tuned it... how far in or out is the hammer striker pin and the rear velocity adjuster (RVA)?

[@dmc31405]

Thanks for the informative video. What do you fill your PCP Rifles with? Sounds like you shoot with some serious air gunners. Taking Prarie Dogs with a PCP, that's got to turn some heads in the field. :)

[@Monkeydad1969]

Thanks dmc. I have an Air Venturi compressor, and several scuba and scba tanks. It's not so easy with air rifles, but to me it's more of a challenge, way more fun to use an air rifle setup for long range.

[@inspiredTalent]

Do I need to degas the rifle to perform these adjustments?

[@Monkeydad1969]

No you don't. But if you feel better about it then by all means please do so.

[@David-jv2pu]

I will have a chrony soon, realizing it is a necessary tool to know what's really going on. I want as much knock down power as I can achieve with not too much extra cocking effort. It is a little harder with the heavier spring though. My initial goal was/is to eliminate any hammer bounce and not waste air. I will keep you posted. Thank you for the reply.

[@Monkeydad1969]

Looking forward to your results.

[@elcues]

That stock looks so good. I do not like the foregrip on the Marauder factory stocks. They are too fat flat and bulky. How did you put a .35ltr. bottle on a Marauder ? Very good helpful and informative vid. Thank You.

[@Monkeydad1969]

I love the stocks on all of my Marauders, they're all aftermarket. The factory stocks are ok. I really like the Armada stock and it's just an easy swap to a Marauder. On my bottled .35 I had the tube cut to my desired length. On my bottled .25 the complete setup was made to fit around the tube and frame. Great sport, gets frustrating at times...but seriously digs a hole into the wallet.

[@kturbo504]

Is this format somewhat the same for the Benjamin marauder pistol? Minus the valve adjustment screw?

[@Monkeydad1969]

Yes. It should help out with tuning the P-Rod.

[@papote385]

How much power FPE and FPS can you get out of the Benjamin Marauder .25 caliber using 26 gr pellets by just tuning without modifying any parts?

[@Monkeydad1969]

That all depends on the tune. I know that sounds like a cop out, but it's hard to say because it depends on the tune. I haven't tuned with pellets that weight, but now I probably need to do some work.

[@papote385]

​@@Monkeydad1969 Thanks for your insights! I currently have mine set to 840 FPS with 26gr FX Slugs, achieving 40.72 FPE, and it's performing with great accuracy. I was just considering whether it might be worthwhile to invest in the .25 Rifle Max Kit at $267.98. They don’t specify the additional power gains, so I’m curious if the investment could significantly improve performance. Any experience or recommendations on this upgrade?

[@Monkeydad1969]

@@papote385 It seems to have quite a bit of punch with the 26gr, which are actually the JSB King 25.39gr. How much more power do you need and what will the rifle's purpose be?

[@papote385]

@@Monkeydad1969 Hi there! I chose this air rifle for hunting small game because it can reliably group 5 shots within 1 inch at 60 yards. My goal is to maintain around 30 FPE at that range for humane hunting. With my current power setting, I keep my shots within 60 yards, but I’m curious if there’s potential to extend that range to 100 yards effectively. Any insights?

[@Monkeydad1969]

​@@papote385of course. You just need to set out targets from say 50 to 100 yards and start shooting. Practice makes perfect. But you will lose your current tune to maintain good down range energy. You can shoot with your current settings, but you are going to want to bump it up just a bit.

[@gongjengonmei8896]

To increase the power which direction do i hve to turn?clockwise or anti clockwise?

[@Monkeydad1969]

Clockwise on the hammer spring.

[@williambourbeau4374]

Great video!

[@Monkeydad1969]

Thank you! 👍🏾

[@51coronet]

Did these mods on a 2019 .25 cal with the Walter barrel. My marauder gained about 30fps with benjamin 27.9 grain pellets. I didn't lose any shot count. In stock form 16 shots the fps ranged from 788 to 805 with an average of 796 fps . in modded form the fps went from 801 to 835 with an average of 821 fps. The FPS went up when the pressure got below 3000 psi. By the 16th shot the pressure is right at 2500 psi so I have a few more full power shots left in it. Is this typical of marauders to have such flat FPS to about 16-20 shots then fall off?

[@Monkeydad1969]

Yes, they seem to shoot pretty flat. As the psi gets lower, you'll find your fps goes up because it's easier for the hammer hitting the valve to overcome the pressure. So are you happy with your tune?

[@51coronet]

@@Monkeydad1969 yes I am happy with it and thank you for detailing what to do and how each piece works. The manual goes into a little detail about the valve and states 4.5 turns is full open from a fully seated position. I was hoping to get closer to 900fps with the pellets I have. I am happy with 16 shots before needing to fill again but obviously more fps and shot count is always desired. So with stock parts do you think I can get 900 fps with the domed 27.9 grains? Or is it typical to need a lighter pellet for that speed and a stock gun?

[@Monkeydad1969]

@@51coronet this is a tune I did for a friend. I did replace the valve return spring, and there is no spring tension from the power adjuster. I also did the ¼" vinyl tubing mod for the transfer port. This is shooting JSB Kings, I know you are shooting the Benji domes. But here is what I got... Saved Chrono Group - 12-01-2018 02:24:46 PM Created: 12-01-2018 02:24:46 PM Description: Casey's .25 M-Rod Notes 1: 0 CW HS, 1/4" TP, softer valve spring Notes 2: 16 shot, 3kpsi to 2300psi Distance to Chrono (FT): 2.00 Ballistic Coefficient: 1.000 Bullet Weight (gr): 25.390 Altitude (FT): 5280.0 Temp: 46 °F BP: 23.81 inHG Shots # FPS FT-LBS PF 16 887 44.36 22.52 15 896 45.27 22.75 14 894 45.07 22.70 13 901 45.77 22.88 12 905 46.18 22.98 11 905 46.18 22.98 10 904 46.08 22.95 9 905 46.18 22.98 8 903 45.98 22.93 7 904 46.08 22.95 6 897 45.37 22.77 5 893 44.97 22.67 4 885 44.16 22.47 3 882 43.86 22.39 2 876 43.27 22.24 1 868 42.48 22.04 Average: 894.06 StdDev: 11.49 Min: 868 Max: 905 Spread: 37 True MV: 894.27 Shots/sec: 0.24 Group Size (IN): 0.00

[@51coronet]

@@Monkeydad1969 Thanks for the info! Really appreciate your feedback!

[@dalebourgeois8843]

Hey Monkeydad, You are right, I got my new pellets in, and I'm shooting an average of 928fps. I'm using the AArms 18 grains and they are plenty accurate enough for me! Pellet on pellet at 30yds and about 1 inch at 55yds. I'm very happy with That! But I have another question if I may ask. I've been play around with different setting, and no matter how I set it I can still hear hammer bounce. Do you think a 10# spring ( and/or ) a tss spring kit from War with the super hammer would fix that and make it easier to cock? Thanks

[@Monkeydad1969]

Man, I'm so sorry. I just happened to be going through my comments and I just saw this. Are you still having the hammer bounce issues?

[@krlossires]

hi, nice video, would this be the same for the armada. Thanks

[@Monkeydad1969]

Yes they would. You just have to take all the furniture off before you can get to power adjuster and velocity adjustment screw.

[@krlossires]

@@Monkeydad1969 thanks man

[@Monkeydad1969]

@@krlossires you're very welcome.

[@korybrown121]

Do you think living in Denver Colorado will make a difference from your tune from where you’re at to where I’m at if you could let me know that would be great if there’s anything you suggest I can do more or less I appreciate it

[@Monkeydad1969]

Yes. The air is thinner here...mile high before the weed. So the speeds are a bit faster here. Good question.

[@korybrown121]

Monkeydad1969 Do you live in Colorado if you do do you have a shop

[@korybrown121]

Monkeydad1969 Is there any suggestions that you can give me to hype it up a little bit or should I just play around and see what I can get

[@Monkeydad1969]

@@korybrown121 I do live in Colorado. My vid covers the basics for a power tune. What are you looking to gain when it comes to your rifle?

[@korybrown121]

Monkeydad1969 I’m fairly new to all of this I’m in it for about a year but I am so hurt I cannot put it down but I have many other rifles that I just need a little help with and to know all about them I just can’t find anybody in Colorado to go shooting with and to learn from the best I watch Hunter one extreme a lot of them knowledge is the key I have a lot of hatsan Rifles that I’d like to get familiar with and be able to tune on I am in Lakewood not a lot of places to shoot in my neighborhood

[@a.l.r.3006]

Hi joe,i make this setting to mi .177 with 13 gr zan slugs end i have 934 fps. Thanks for your video.

[@Monkeydad1969]

I have updated my .177 since the vid. It is powered by a JSAR valve and shoots a 19.5gr VarmintKnocker .177 slug at 60fpe. I have tried KO Slugs, and they do great. Please keep me in the loop on your setup.

[@a.l.r.3006]

@@Monkeydad1969 I don't know if i can order valve from US because I'm in Cyprus i will try. Can you tell me how to find what barrel i have in my Benjamin; Thanks.

[@Monkeydad1969]

@@a.l.r.3006 I don't know if JSAR will ship internationally. When you say find what barrel you have, do you mean what manufacturer made it? It's the .177 barrel that Benjamin makes in house.

[@a.l.r.3006]

@@Monkeydad1969 yes that i was meaning, thank you very much for your time to answer. keep the good job 👍.

[@topdragster365w]

Hi there have a ? Your 1st adj on adj the pin in your video you turned clock full tight and back it 4-5 turns does it bottom out or will the pin come off/out cause i went 7 turns but stopped incase it dont stop. Thanks boss

[@aerialshootwonderboy919]

hello sr i just i have b. armada ... are they work the same in adjustment of everything in marauder? thank u ..

[@Monkeydad1969]

Yes. The Armada is just a Marauder in a different stock and this tune will work for you.

[@aerialshootwonderboy919]

@@Monkeydad1969 thanx a lot ...men...

[@aerialshootwonderboy919]

@@Monkeydad1969 hello mate im back .. i just want to ask 1 thing .. it regards the bolt action... since i am left handed shooter.. left hand to pulling triger. i would like to change over the bolt lever other side on the left side i mean. so i can easly just pull it by my lefthand.. do u have an idea how to change it on otherside? is it posible ?

[@Monkeydad1969]

@@aerialshootwonderboy919 you have to remove the breech to get to the cocking pin on the bolt. I can do a vid for you.

[@aerialshootwonderboy919]

it would be still the same on cocking ? the lever facing down ? when it goes back to secure? coz whats in my mind is il be an oposite way the lever where we hold is facing up after cocking.... anyway ill w8 for ur video and really thanx for that... much appreciate.... godblez man....

[@domingoliao2724]

Excellent, instructions for owners of Benjamin marauders!, bythe way is that a Discovery 4-14x44 ffp scope??where did you get it?

[@Monkeydad1969]

Domingo Liao thanks and my scope is the 4.5-18x44. I have two. I got them from a friend who bought them on Amazon over a year ago.

[@chevyryda60]

Monkeydad1969 I see you have the vt model how you like it ...thinking bout getting the hd model...

[@Monkeydad1969]

@@chevyryda60 hey, sorry. Don't know how I missed your reply. I really like it. Just it runs out of MOA. Had to get an adjustable mount for it on my .257.

[@bullbars1822]

Where can I get a stock like yours? Did you put a drop down on where your stock tube mounts to the Marauder?

[@Monkeydad1969]

It's a Teryx Gen I stock. Unfortunately they don't make them anymore. So when 3 came up for sale at Baker Airguns I was all over them. It's a complete drop in. No mods needed. No drop down where tube mounts.

[@bbailey8445]

Thanks for the video, very helpful. Two part question, I'm somewhat new to pcp guns. Do you de-gas when you make these adjustments? Also, I have a regulated maurader, is there anyway this would mess with the regulator? I didn't realize when I got the regulated version it was a set to a lower fps, I just liked the shot count. I wouldn't think it would matter just wondering your thoughts. Thanks!

[@Monkeydad1969]

You don't have to de-gas the rifle. Only if you need to actually get into the tube. The adjustments won't affect the reg. But you probably won't get real high numbers because of the reg.

[@roberttheriot7612]

hi Joe; i have the .25 cal. and i'm shooting about 740 fps. and i think that is a little slow. It is deadly accurate. Something i really like about shooting. That is my number one concern about shooting air rifles' but if i can get more speed and keep my accuracy i'll be very happy. Love your video. Very informative. What kind of speed do you get out of your .25 cal. I think when you buy a Benjaman marauder .25 cal. the spec.'s are in the high 800's if not 905 fps. Am i correct? Also how do i know if my Marauder is regulated or not and how do i know if it has the de-bounce deal. One more thing Joe; what kind of shot count will i get boosting everything up. thanks for all the info

[@Monkeydad1969]

Hey Robert. All my Marauders are all custom at this point. I've either made bigger calibers out of them or modded them. My current .25 is regulated at 2100psi and I get an average of 822fps for 40fpe for 30 shots. But again it's modded and has a Hill valve. I'm not even sure what I got stock. I'm just not giving you a lot of info hear. I would say to you to try what I explained and see how it goes. If you really want more power and aren't afraid to take your rifle apart, then put a softer valve spring in your valve, use ¼" vinyl tubing for the transfer port, and shoot a heavier projectile, say like the JSB Heavies or Mk2 heavies. Please feel free to always reach out to me.

[@Monkeydad1969]

Hey Robert. All my Marauders are all custom at this point. I've either made bigger calibers out of them or modded them. My current .25 is regulated.

[@roberttheriot7612]

@@Monkeydad1969 hi Joe; thank you very much for the info. I guess i will end up buying me a regulator and i hope it works for me. The reason is because i like consistency as for as for speed so i can keep my accuracy from shot to shot. Do you have a de-bounce system in your marauder's? If so what brand. anyway keep up the fantastic vid's.

[@Monkeydad1969]

@@roberttheriot7612 no I don't use a debouncer in any of my rifles. I generally don't have an issue with hammer bounce unless I over do the spring or have a bad spring installed.

[@roberttheriot7612]

@@Monkeydad1969 hi Joe, couple more questions if you don't mind. If i install a Huma reg., do you think i'll get about 30 good shots at 830fps or somewhere around there. also. i hear a ping when i shoot my .25 Marauder any suggestions thank you very much

[@9mmkahr]

I have n mrod .25 on the way, my first PCP. This video was so straight forward and easy to understand, I thank you. I don't remember you mentioning fill pressure...i assume this tune is for 3k psi max fill? Another question, What's the max fpe one can expect for a 2 mag string?

[@Monkeydad1969]

I fill to 3200psi often on my personal rifles. But on one tune for my bud I filled to 3kpsi and got 2 mags with an 894fps average, high of 905fps, low of 868fps with a 11.49 standard deviation shooting the 25.39gr Kings. That's unregulated of course.

[@9mmkahr]

@@Monkeydad1969if you remember, how did that tune differ from this one in the video? Also is accuracy at all affected by cranking up HS etc? (Just thinking internal vibrations)

[@Monkeydad1969]

@@9mmkahr the vid was more for instruction, not an actual tune. There are more in depth things that can be done, but that involves changing the valve spring and opening/polishing ports...for more power, less shots. Of course you can change out the hammer spring and if you wanted, get a more powerful valve.

[@vincerosario3495]

Can i ask you..i have a benjamin..like yours..but i like your chasis..where i can buy that?that chasis are in benjamin armada?

[@Monkeydad1969]

That is a Teryx chassis. Mine is for a Gen I. They don't make them anymore, unfortunately. But the did make it for the Gen 2's also. They sometimes come up for sale, but very rare.

[@jds653q]

What is your fill pressure you are starting at? I assume 3000-3200. Thanks for the information! Ok so I did the tune and I ported the valve and the breach to 3/16”. Before I drilled it out it was stock. I put the piece of 1/4 tubing for the transfer port. Before I did all this I had the hammer ccw all the way back and a full 8 cw on the hammer spring. With the jsb 25 gr. Pellets I was getting 865 FPS by filling to 3100 psi. After I drilled everything and put the tubing in and adjusted it like you had yours set at 5 and 3 I am now shooting at 700 FPS. Any thoughts? Thanks.

[@Monkeydad1969]

That's interesting. I don't understand why you weren't getting over 900fps before the mods. Here's is my bud's M-Rod shooting the Kings on the tune: Created: 03-12-2018 07:40:16 PM Description: Casey's .25 M-Rod Notes 1: v.a.5ccw, rva5cw, hs3cw from face Notes 2: Kings 3000-1900 Distance to Chrono (FT): 1.00 Ballistic Coefficient: 1.000 Bullet Weight (gr): 25.390 Altitude (FT): 5280.0 Temp: 45 °F BP: 24.81 inHG Shots # FPS FT-LBS PF 16 846 40.36 21.48 15 854 41.12 21.68 14 861 41.80 21.86 13 865 42.19 21.96 12 872 42.88 22.14 11 886 44.26 22.50 10 894 45.07 22.70 9 903 45.98 22.93 8 901 45.77 22.88 7 908 46.49 23.05 6 912 46.90 23.16 5 923 48.04 23.43 4 925 48.25 23.49 3 928 48.56 23.56 2 935 49.29 23.74 1 932 48.98 23.66 Average: 896.56 StdDev: 29.45 Min: 846 Max: 935 Spread: 89 True MV: 896.66 Shots/sec: 0.12 Group Size (IN): 0.00 Now he was only worried about getting 2 good mags. As you can see his first 8 shots were great. I only filled to 3000psi and the Kings were flying pretty good. Also, anything past 6 turns on the hammer spring will put the spring guide off the threads, so the hammer spring and guide are loose. If you push on them with your alan key you'll feel it. I wonder if there wasn't an issue with the valve in the beginning. Also, since you opened the valve exhaust, did you change out the valve spring for something not so stiff? That will help with getting more air. If you are on GTA or Airgun Nation look me up by my KZbin name and send me a pm. I'll be more than happy to exchange numbers.

[@jbrou3892]

Will this stuff also work for a regulated marauder?

[@Monkeydad1969]

Yes, but the regulator will give you an even better shot string. I tuned a friend's regulated .25 and it got 16 shots with a deviation of 3fps pushing King Heavies at 60fpe.

[@miguelalvarez1155]

I need that stock .. I have the 25.cal gen 2 and walther berral with the adjustable cheek piece in a wooden stock it came with.how much is that stock you have

[@Monkeydad1969]

Hey Miguel. That is the Teryx stock and they aren't made anymore. I just lucked out and got mine for a good deal. My return Teryx stocks are for the Gen I.

[@shanebarry7469]

were did you get that stock and thanks great video

[@Monkeydad1969]

Thanks. I got them from Baker Airguns. Unfortunately, the Teryx stock is no longer made.

[@shanebarry7469]

@@Monkeydad1969 well thanks that just kinda suck. well i guess ill have to make a custom one then. plus i dont think it would of worked with the bottle i put on it but .thanks anyways

[@Monkeydad1969]

@@shanebarry7469 New England Airguns sells a frame for bottled M-Rods, in fact he sells the entire kit. So you can have your cake and eat it too.

[@kturbo504]

I heard you mention slugs. Are you able to shoot without any issues with a stock benjamin marauder barrel?

[@Monkeydad1969]

In my .177 Heavy Hitter, yes. In .22 I ended up using a TJ liner. The .25's with the Green Mountain barrels do good with slugs and heavy pellets.

[@anilabbaraju1]

Hi how to stop air after removing valve screws both this is how my friend increased his marauder power please help

[@Monkeydad1969]

I'm a little lost of what you're asking. Are you trying to get more power?

[@anilabbaraju1]

@@Monkeydad1969 yes for my previous marauder my gun smith removed metering screw and grub screw and increased power but sir didn't come even after removing both screws from the side how to do it please help

[@Monkeydad1969]

@@anilabbaraju1 did you adjust the power adjuster to put more preload on the hammer spring and did you increase the hammer stroke by backing the striker pin closer to the hammer face?

[@anilabbaraju1]

@@Monkeydad1969 yes I have increased the hammer spring tension from complete back up i turn 10 clock wise turnsand hammer strike anticlock wise till it stops

[@paulineroyadair3505]

YOU got a new subscriber . ROY from Roswell New Mexico

[@Monkeydad1969]

Thank you. And hello from Colorado.

[@marty4645]

Good video Md1969, I like that stock on your 177, where'd you get that from? Wish I'd seen this video before all the mods I made on my 25 cal. But I enjoy mine just fine, but it does need to be chronied.

[@Monkeydad1969]

Thanks Ken. The stock is a Teryx. Unfortunately they are not made anymore. I'm glad this vid has been helpful for a few shooters. I'd have done a few more vids but my job keeps me going 6 days a week.

[@marty4645]

Monkeydad1969, ok thanks for the reply. I have Tim Hill valves and TP mods in mine, but have not chronied it yet, however I did notice an increase in power. Thanks again.

[@Monkeydad1969]

@@marty4645 you definitely need to chrony it. Helps a whole lot when tuning.

[@ralstonraz]

Amazing video. How many shots do you get on the 177 and 25 on this setup?

[@Monkeydad1969]

On the .25 two magazines with good power. The .177 I can get 20-25 really good shots. I just have to adjust my POA.

[@ralstonraz]

@@Monkeydad1969 that's great. Thanks Mate. Cheers.

[@darrenfrith3958]

Hey what other mods do you have on that .177? I followed your process and with the piledrivers I am getting @540fps for about 13ft/lbs, otherwise bone stock (brand new) marauder F&T with the LW barrel. Oh and thanks for taking the time to make the vid!

[@Monkeydad1969]

The F&T is regulated. That's not gonna work. I have replaced the valve spring, opened the valve and barrel port, .25 M-Rod transfer port, and tuned. I'm getting 950-960fps for 42-43fpe. If you don't want to mess with the F&T, get a used .177 Marauder. I'd be more than happy to help you thru it.

[@darrenfrith3958]

Monkeydad1969 how’s the accuracy? The way it’s setup now I’m getting dime sized groups at 60yds. I heavily modded my hatsan Bullboss .25, lightened/polished the hammer, opened the transfer port/barrel to 15/64”, JB welded the valve & made single hole facing the transfer port, adjusted the spring tension till I got 950(ish) FPS w/JSB 33.59 heavies....so I’m getting @70 ft/lbs accuracy is good to @75-80 yds which is what I hunt at. I’d like to have the marauder at the same range with @50 ft/lbs. but accuracy is critical.

[@Monkeydad1969]

@@darrenfrith3958 I actually haven't done any real groups, but...I tag P-Dawgs at 100-187yds accurately. The work on your Hatsan is impressive. To get 50fpe on a .177 Marauder you'll need a longer barrel to take advantage of the extra fps. That'll get you closer to 50fpe. Or a aftermarket valve like a WAR valve or a Cothran Powerhouse valve. Only thing is that the Cothran will over power the setup in .177. His valves are made for .30 and up on the M-Rod. I have put them in .25 M-Rods, but it's a fine line between just right and OMG!