Air Rifle TUNING "HOW TO" w/PJ Clarke - Air Venturi - FX Airguns - How to Tune a PCP Airgun !!

This video is an introduction, overview, and user's guide for modern PCP air rifle, pellet gun, and airgun tuning methods & basic concepts.
AEAC's Primary KZbin Channel: / svscialli
PJ Clarke's KZbin Channel: / wiscairgunners
DISCLAIMER: This video is meant for educational & documentary purposes only. All work on airguns and airgun accessories should be carried out by a proficient licensed professional. Airgun Exploration & Advancement Channel nor KZbin will be held liable for any injury or damage resulting from attempting to duplicate anything shown in this video. Airgun Exploration & Advancement Channel is not an airgun store. We do NOT sell airguns, airgun parts, or airgun related equipment. Airgun Exploration & Advancement Channel is compensated by KZbin for its content creation. By viewing this video, you are acknowledging the contents of this disclaimer.

[@joshuagibson2520]

49:00 The AEAC universe is the center of airgun knowledge in my opinion. I'm into springers and low to mid level PCP's. I've learned immensely from Steve's efforts. Yes, I can dig the forums and spend lots of time talking one on one with the old timers, but as far as bang for the buck, you can't beat AEAC. Thanks for all your efforts Steve. Always looking forward to the next installment. Idec what brand or model is next to be featured. The knowledge is universal. I say it all the time... We're truly living the muscle car era of airgunning. What a time to be alive.

[@aeacvlog2033]

Thanks for the kind note Joshua. It's appreciated. Steve

[@edwardhopf2654]

When I turned my air Venturi avenger bull pup in 25 I was setting it up for 33 grain slugs. I had the regulator pressure at 2800. I adjusted the hammer in 1/8 turn increments. In the end the hammer spring was turned in 1 1/8 turns to get the best accuracy. It was amazing at how small adjustments made such a big difference in performance.. Today I have a fx impact m3 compact in 30 caliber coming in. I’m going to shoot slugs in it. I’m glad you put a video up on this. Thank you for posting this video.

[@aeacvlog2033]

So cool to hear you validate the process. Nicey done! Steve

[@Ryland35767]

Positive update on the Avenger .22 regulator creep. I had three Avengers in a row that had extreme regulator leaks. They were almost identical in the amount and time it took them to creep. According to Air Venturi they were the barrel baffle models that went into the wood stock model but mine were plastic. After three creepers, I am very pleased to say my next Avenger has a stable regulator, nice trigger, and very accurate. This model is without the baffles and has the screw near the receiver that holds the barrel shroud in place. The creepers did not have the shroud screw. Steve, thanks for addressing regulator creep in this video. Looking forward to seeing more.

[@UncleChuckApproved]

Yes, more of this with other industry user "experts" content providers, shooters, hunters, manufacturers on different subjects. Some history, some development, some best practices and techniques. Your content is fantastic, but, I think you talking with other shooters brings more perspective to the conversation. Good stuff both you and PJ.

[@airriflehunter87]

Awsome information given out by two genuine people . Good to listen and see how we do things . Where as you start with the hammerspring low I start with it maxed . I then edge up the reg to be where I want to be . Backing off the hammerspring then until the speed just drops . Only reason is I find it slightly quicker . I also like how you mention you can get hung up on deviation and spread and get it very good but still have poor accuracy. This is so true and something people get to wrapped up on without actually testing all avenues due to poor numbers . Fantastic guys . I will watch the other half later 🔥

[@chewyfknrocks]

Well hell, in so many words we said the same thing lol 😂

[@bradwiebe5692]

Wow loved this! I really like the non knocking of different brands because it so is up to what you “want” to spend! And they all fling lead down range, but how far and fast and adjustable is in the $$$ you can afford and or want to spend. I’ve been along for the long ride. And watched many hours of video from you both and others! Glad you have it in you!! And thanks for your time! So much good info!!

[@sherryblain2385]

Steve thanks to you and PJ. You two and now Tyler are reason this young man of soon to be 75 years young are into pcp air rifles. Tyler thanks for making two guns I can purchase and learn how to tune. Thanks Steve and PJ for your videos on Avenger and Bullpup. All three of you are awesome. Thanks for caring about us little folks. Your videos I can't get enough of them. Watch over and over. GaryBlain in Texas

[@aeacvlog2033]

Thanks for the kind note Gary. It's nice to meet you. Steve

[@vonclod123]

Learned lots from you, tuned my Avenger so it shoots so good. What a perfect 1st PCP rifle. The Hammerspring was a big part of it, I shoot at 1900 psi, and vary the hammerspring based on ammo.🤘

[@caseycampagnari8854]

Thanks for all these informative videos Steve! You are great at what you do, and I'm sure you consider yourself fortunate to have met all these great people in the industry and bring them to a place where we can all learn from each other.

[@aeacvlog2033]

My pleasure Casey. Thanks for the support! Steve

[@CobosDoesItAll]

@@aeacvlog2033 steve- what gun would be one step above an avenger?

[@AEAC]

@@CobosDoesItAll Ooo, good question. I'd say an equally flexible platform would be in the $1,000 to $1,500 honestly.. the $800 tweeners just don't have the external adjustability the Avenger does. Steve

[@toolbox-gua]

No waste of time in your channel and with such a guest invited. Very informative and clear. Thank you.

[@DerredmaxTRIAX]

Thank you brother I learned so much from you and PJ today. This was so much more then just content, Maybe to coin a phrase? AEAC is where you get the wholetent we left the content behind!!!!

[@aeacvlog2033]

😄😄😄

[@drekceldude]

One of the questions was sometimes it's nice to have a simple rifle that doesn't need hours of fiine tuning, thanks to Steve I bought 3 rifles over the years, Gamo Urban, FX Streamline and Air Venturi Avenger, all great rifles but my go to rifle for pesting , plinking is the Streamline, it's so consistent and reliable and it should do it's a $1000 rifle, it also makes my next pcp purchase difficult because it does what I want so well, but I'll probably watch another AEAC video and see another rifle I like.

[@SoulSniped]

THERE'S A DOPE STARTING AT 1:04:04, for Tuning Enthusiasts!! Love that PJ!!🤩 Steve, can't thank ya enough for bringing us this joint! Love ya both!!🤗

[@AEAC]

🤙🤓

[@Maloneranger0311]

Absolutely the best video I’ve seen to help me understand how to tune the M3 .357 I bought last week for hunting. Now all I have to do is hear how to use the valve adjuster knob to go along with the macro and micro adjusters. Thanks for this wealth of information and looking forward to the M3 tuning video. You both just got one more viewer👍

[@aeacvlog2033]

Thanks Tim and welcome!

[@pauln1176]

awesome to see two amazing people with a passion to learn and share...amazing video

[@AEAC]

thank you Paul!

[@tommanfs6843]

just watched this video, and just wanted to say thank you both for all the knowledge and guidance youve provided, not just on this video but ALL videos...... you provide a very valuable service here so that we all can learn and stride to achieve "the perfect shot" time and again, once again, thank you, and please keep making videos :)

[@AEAC]

Thank you Tom 👍😁

[@MrPeterschmit]

I very much enjoyed this video. I'm glad I have marauders and don't have to worry about regulators. Just 3 things to adjust to tune perfectly.

[@chrisreilly4006]

So much good information here. Steve you have been the BIGGEST influence on what gun I select to buy next. I do not have access to see or hold air guns where I live, so everything I buy is ordered online. Back when you reviewed the Gamo Urban I knew it was the first PCP I wanted to have. Now I own two more and one you have not reviewed. The Benjamin Akela. My first bull pup. The detail you provide is what helps me make my decisions. GRAVELY. Which is another reason why my first high quality air gun is going to be the FX Maverick. I want to learn to tune to the T. We are definitely limited to information when it comes to air guns and what you do Steve us greatly appreciated. I really hope there is many many many more years to come. Hopefully until we are old and no longer around. Please don’t stop doing what you do! Oh and thank you PJ for doing this with Steve! I will follow your channel!

[@aeacvlog2033]

Thanks for the really cool note Chris. Your message is very much appreciated. Steve

[@chrisreilly4006]

@@aeacvlog2033 You’re welcome Steve! I almost want to say I wish there were more guys like you that made amazing quality videos like yours, but then again that is what makes what you do so great. Steve I know you are a busy guy and getting busier by the year, but is there a way to exchange more words with you? I want to ask a few things regarding the FX Dreamline and FX Maverick.

[@aeacvlog2033]

@@chrisreilly4006 You can say it. We need more reviewers for sure. There's LOTS of work available for them if they so desire. I'm at [e-mail]

[@chrisreilly4006]

@@aeacvlog2033 Thank you Steve!

[@AEAC]

@@chrisreilly4006 👍

[@russellfleet7636]

This is the best video I have seen to learn from. I'm a perfectionist my self and appreciate perfection.

[@AEAC]

👋 high 5, lol 🤓

[@russellfleet7636]

@@AEAC ha have you guys ever had a chance to play with the huban air rifle in .22 or .25 cal .I think thay would be a excellent slug gun for various types of varmints.

[@AEAC]

@@russellfleet7636 I have not. The new Skout looks neat and operates on a similar principle. Hopefully I'll get a chance at that one. Steve

[@michaelbritain5546]

Hi Steve n PJ, thanks for the answer on my fx crown mk2, it has an amp reg but obviously now I know it shipped with an older Manual, I learned so much in the last 2.5 hour's I really need to say Thank you for all the hard work in making these video's, it was a real eye opener to me, take care, regards Mike

[@Tunnelrat6666]

Thanks for the vid. Cannot wait for the M3 tune guide.

[@fredcarter7003]

This is best airgun video I can ever remember watching Steve/pj you two are killing it

[@weaselleafful]

Thank you PJ for your service and all the knowledge you share with the community.

[@nephtalilucero8084]

So much to talk about. Great first take! Informative. A lot of us listeners tune in for tips and know hows from u guys. Saves time and trouble and takes out the I wonders...some things you talked about i do not have another person to ask and its confirmation on things i was noticing. Thanks!!

[@mr1234tempo]

On a quick note right now before I listen to this video...I just want to say I viewed the video you both did at RMAC...you both taught me a ton about gun harmonics...I'm very new to air gunning...I have a .25 cal Seneca Aspen and a LCS SK-19 .30 Cal...I put one of PJ's harmonic tuner and an Emperor moderator... shooting 49 grain Neilson Slugs, reg pressure is at 140 bar, so here I go on trying to fine tune...yes I've seen the temp effect on the SK-19...I would not have even thought of some of the things you talk about tuning...any tips on tuning an LCS SK-19 is appreciated...Thank you both for all you do.

[@AEAC]

Super cool and thanks for the note! Steve

[@stephenhardy7875]

Been snowed in for a day or two, so decided to treat myself to your video. So to start with thank you for a great informative video. You clarified many of the things I've been trying to figure out for some time. Many Thanks, Steve

[@Iflewlo]

I watched the whole video! Thanks for your explanations with P.J. Worth the time to get a better understanding and education. Thank You both.

[@georgedeedsnotwords2162]

Thank you both ! Its always great to get input and hear different explanations on how things work . Sometimes all thats needed to get the meaning it the path of the words . MORE of these interviews please . Maby something around a bonfire with some drinks of choice . A little more let your hair down fun talking and some good stories . Merry Christmas all !

[@aeacvlog2033]

Merry Christmas! Love the feedback.

[@medwynvermin8772]

I think I was only about 5 mins in and knew that this was going to be good. Thanks for sharing.

[@jefferymccoy5461]

Hello Steve and P.J., Just like you guys were talking about, I too have no airgun shops anywhere within a reasonable driving distance. It would take a whole weekend to visit the closest airgun shop, probably in Ohio,as far as I know. That being said...had it not been for you, P.J., Matt, Gerard, Tyler, Travis, Giles and a few others, I would have NEVER trusted that 1500+$ would get a competition level airgun with user friendly adjustability. In 2005 I bought a Walter LG 400 FT air rifle, 6-38X56 walther FT scope, steel scuba tank, and a tin of pellets for $3400. I had been bitten by the airgun bug and I was wanting to compete. The problem was....there wasn't any clubs or competitions within 200 miles. Needles to say, I didn't do much competing, except with my wife. Who ,by the way, could shoot better than I a lot of times. Now,since I bought my Dream tact, I have been bitten by the competition bug again. Guess what?...... Nowhere to shoot except over at Minor Hill where the RAW factory is/was. Anyway... I want to start a club of my own here in Clarksville, TN. I live within 12 miles of a military base and could probably get a bunch of those guys involved. I see a bunch of them at the shooting range just a couple miles from my house. Where would I get the information to find out how to be sanctioned or start a club?? Also, where could I get a list of events and rules for RMAC, EBR, ETC? Any information on resources or advice on how to go about getting set up would be very appreciated. I have had a lifelong dream of competing with like minded people in airgun competition since I got my first Daisy power line when I was 8 years old. If there would have been anything available to me back then, I would have already been competing. That was an awesome ask AEAC with you and P.J., by the way! I hope you didn't hurt your wife's feelings because, I enjoy her comic relief when you guys do the ask AEAC together.

[@aeacvlog2033]

Jeff, I would ask Martin at RAW in Minor Hill about how to get started around there. He should be well connected. EBR rules ask AoA. RMAC rules ask UA... or visit their dedicated sights. The rules may be on there. PA Cup is another good one to compete in. Katya is okay, thanks. She'll be back, lol

[@stigcarboncreative]

Hi guys, like your focus! Everyday a school day! I'm shooting .177 out at 232 yards....Low power that is...Love it!

[@AEAC]

🤘🤘👍

[@airgunsofidaho4886]

.177 out to 232 yards?? What are you using? Low power?

[@stigcarboncreative]

@@airgunsofidaho4886 Yeah next stop 250 yards. Fx impact with AA 8.4 grain 816 fps

[@keithrogers5832]

Thanks Steve and I just subscribed to PJ, this was a great video, really informative 👍

[@braddenty503]

Hey guys... Wow my 2 favorite air gunners in one show! I'll be saving this one. Been gone a while, just got my "Bullvenger". Haha coming from a break barrel thus feels like cheating. So accurate it aint funny, unfortunately I'm getting a POI shift. Easy enuff to fix but dang it, that's annoying. Probably the scope, it was on a Gamo Magnum b4 but I'm not sure. Any info would be greatly appreciated. And Steve...i do live like an hour from u man, hint hint. Ive got approximately 120-130yds to work with and MAYBE the largest airgun backstop in Fla. Invitation definitely open for Mr.Man PJ. Ive watched tons of his videos as well. Especially the one explaining the flight and BC of pellets compared to slugs. Haha sorry I'm long winded

[@exmcairgunner]

Thanks to both of you , really insightful.

[@sarkisvartanian9158]

Very informative guys . Thank you.

[@slingingsteel9744]

Thanks Steve and PJ! Awesome video! Lots of great information! I’m new to PCP and I’ve been learning a lot from you guys.

[@deantellulater9785]

🔫😀I listen to the entire show while I was tuning my maverick. I’ve only had it for two weeks less than 300 pellets. I really enjoy both of your guises social media thank you for doing what you do it helps me:)

[@AEAC]

that's awesome, lol

[@janrobertbos]

still SIMPLY THE BEST.................BETTER THAN ALL THE REST..........Thanks, Steve! A Merry Christmas and a Happy New Year to you, Steve, your family and all of your viewers world-wide! Greetz from the Netherlands!

[@aeacvlog2033]

Lol, making me laugh out loud! Greetings!!

[@FreeRange1234]

Hey, I'm new to the air gun scene was wondering if you have done or would do a video on slugs. Specifically how to know if your gun can shoot (is safe to shoot) slugs, what to look for in a good slug gun, and maybe the differences in tuning to shoot slugs v pellets.

[@AEAC]

Hi and welcome. Hit up my other KZbin channel. Lots of gun reviews there with slugs and lessons about slugs within. Best, Steve

[@stevenrowe5047]

i am trying to find PJ Clark on KZbin great video. thank you😁!!!

[@AEAC]

Wisconsin Airgunners 👍

[@NNMV-up7mf]

Great video. Lots of good information. Thanks for taking the time. I am a newbie into the PCP world but amazed with its accuracy. I hope to be able to learn all the fine-tuning that you guys talk about. Definitely can be overwhelming at times.

[@aeacvlog2033]

I feel ya on the overwhelming part. Waiting my many setup & tuning guides will help you get comfortable. Best, Steve

[@richardhammond1157]

great video... again. : ) I have a question? when you say when you are shooting in the wind you may have to turn your speed down so the pellet wont corkscrew. So you back off the speed and its shooting great in the wind now. My question is what would the benifits of turning it back up in calm weather just to have to turn it back down when the wind picks up again? Thanks again for all your insight.

[@AEAC]

The wind has a tendency to destabilize pellets that are moving to fast. If you're getting corkscrew, dial back the speed and it will normally disappear 👍

[@ur2insecure]

Thank you both for the awesome content and a big thanks to PJ for sharing his knowledge with us, much appreciated.

[@AEAC]

👍😁

[@mr-gain]

Brilliant video! Can't wait for the m3 tuning guide. I'm rocking a compact 500 with a 600 barrel tuner ( meant for the the sub 12 standard m3) and trying to tune for the lighter 21 and 23grn slugs on a superior barrel in 22. Seems to favour the 218 H&ns, but weirdly at slower speeds (800fps) at 30m. Yet to try at 50/100, so not sure if they'll stabilise further out. Love. Your. Work.

[@aeacvlog2033]

Sometimes they "don't" stabilize until further out, hehe.

[@zacatecano1986]

Man ! Amazing information , im defientely gonna play with my rega this weekend !!!!

[@AEAC]

👍😊

[@heithwatkins]

Thanks guys. Excellent information. God bless you both. Merry Christmas 🎅 🎄 🇺🇸

[@aeacvlog2033]

Merry Christmas!

[@UncleChuckApproved]

Some of the long barrel being more accurate comes from hand holding and open sights. I don't hear many ever mention this, the longer distance between the iron or open sights help in accuracy. Also a longer barrel can help stability (counter balance and swing) in off hand shooting, of course in slower lock time longer barrels can hurt accuracy. IMO this is where some of the lingering longer barrel accuracy mantra stems from.

[@kellypace1534]

Wow guys. Great info here. Watched more than once to glean as much info as I could out of it. A quick question. I have an Impact MKII with the M3 power wheel. Been having trouble with fliers at lower speeds, (880 fps), w slugs and 700 mm barrel in .25. If I’m going to tune for 950 fps w NSA 38.9 gr what’s the PW starting point? Are you trying to get the target at the highest setting or is there an advantage to going for the target at a lower wheel setting? Thanks and keep this kind of thing going.

[@aeacvlog2033]

It's up to you on how to clock the power wheel, makes no difference except for convenience. Regarding the flyers, check the head sizes. That'll cause em more than anything else... varying sizes that is, or too much speed for the wind conditions... or in the case of slugs, sometimes not enough speed. Steve

[@harveywhalen239]

Fantastic. Together is good. I've learned more. I follow both. Can't say enough from So. California. I will continue to follow and tell other friends. Thank you both

[@stephj765RS]

Awesome content guys ! Great collaboration between Steve and PJ. I have a Streamline and Dreamline that I both tuned because I love going through this process. I've ordered a Sekhmet gauge for the regulator of the dreamline because I see it as a great device to help me finetune the rifle and be able to go back to a previous tune. The Wika is good but just gives us a fairly rough idea of what the set pressure is.

[@AEAC]

Thanks! You're gonna love that Sekhmet 👍

[@shawn2571]

The springers jump not from recoil but from spring tension being released. I find they jump off target before the pellet leaves the barrel. I have a nitro piston and it's pretty bad too. Not to mention the horrific triggers.

[@flyfin108]

hello AEAC, i find your content about airguns best there is, yet your channel is hard to find you deserve to be front page

[@aizaobba]

Fantastic! Great information and points of view that make plain that this is a broad science and what we are learning will set the stage for future insights (that could appear radical now but won't be when that day comes).

[@jasonbaldwin1915]

What do you guys think about a gun where all the in parts are stainless steel? I understand it would be heavier... but what if you have stainless...brass copper... and cast iron... all at different expansions... throwing all harmonics off? Would 1 alloy stop this? When you work at lower reg pressures... maybe like cast is more porous? Something like that.. just a thought

[@seangabrell2516]

As always a great video from AEAC. And will be subscribing to PJ’s channel. I’m a springer guy with no experience with the PCP world but if I ever do dabble with the dark side I feel I have an advantage because of the videos.

[@colinstubbs8734]

100 % when I looked at the run time of this video,I thought I can't be assed with watching two guy's waffle on for two and a half hours, how wrong I was, the best video I have ever wanted !!! You guy's have got it so right, thank you so much for putting the time in and putting this together, wow , 👍👍👍👍💜💜💜👍👍👍👍

[@aeacvlog2033]

Lol, thanks Colin.

[@michaelmoretz7592]

WOW Great Video! I have a story about my Maverick Compact .22 cal. to tell you. I want to apologize ahead of time for the long post, but a long video deserves a long post.1 I bought mine on black Friday 2020 with one month wait time. I couldn’t do much testing because I live in the northeast, and its winter. Feb. 10th total knee replacement. March 2021 is here, and testing is on. I have the parts to turn it in to a Slug Sniper 700mm bigger tank. Start testing with NSA 23 gr .217, first problem plenum is taking 15-20 sec. to fill sometimes more. FPS 30-40 avg. differences but not all the time. Plenum stops filling, trip to FX. Get back and O-ring clipped from factory FX fixed. It plugged the hole to fill the plenum I was told. Start testing almost same results but a little better. Not good groups 1 1/2” @ 50 yds, 100 yds 3”-4”. Tuned it the way Steve showed, did not work. Checked liner with bore scope, bad liner and I mean bad. Bought new FX STX Superior liner 700mm. FX did send me a new liner, but I didn’t want to wait for them to send me the replacement. Ok, test again, still not good, go through steps from Steve’s tune process, getting better, but still getting fliers all the time. Average fps 30-40, plenum still taking a long time to fill. After $400.00 plus of NSA slugs and days of testing lost track more than a week. I weighed my options; do I trade it in or sell it with saying that I couldn’t tune it and take the loss and feel like I didn’t know what I was doing? Just to let you know I own a MKII 700mm .25 cal that I tuned, and it shoots 1” MOA@100 yds with JSB 33.95gr and own several more pcps. So, what I did was call Ken Hicks and explain to him what was going on, he said to send it to him, and he would see what he could do. He said he had some special things he can do to tune it. Off it went with everything I had for the Maverick, holding back the kitchen sink. He tuned it to shoot the NSA 31.2gr .217 getting a 1 ½” group with me shooting. The plenum filled in 3 sec. or less. I did not care about AVG, STD DEV, or Spread. But of course, all FX owners know is that you must tweak it just a little more. And what I want everyone to do is listen to Steve and PJ when they say turn the spring screw 1/10 of a turn, they mean it. I turned the screw out just 1/10 of a turn and now it shoots a 7/16” to 1/2” @ 100 yds with that group I had to know the specs, AVG:960fps STD DEV:1.6 Spread:5.0 with 10 shots. My MKII doesn’t come close to this for specs but shoots great. This is all because I sent it to Ken Hicks, I don’t know what he did, but it was the best $200.00 that I have ever spent. Thanks Ken.

[@aeacvlog2033]

Ken is another great tuner that I should invite to hoste in this new format... you guys would love him.. That was a wise move sending your gun to Ken. And GREAT story. Thanks for sharing!

[@michaelmoretz7592]

@@aeacvlog2033 Thanks! Let's just say it was a long summer and I'm still married. My wife put out my targets for the first month because of my knee replacement. Very understanding wife.But now her list of pcp is going up.

[@spawairguns4950]

Thanks Michael! I am so glad we got you on the right path! ! Merry Christmas!

[@michaelmoretz7592]

@@spawairguns4950 Ken if you didn't do what you did to my Maverick I don't know what I would've done. If I decide to buy a FX you will get my business and I will recommend anyone that I can to you. I didn't have that much problem with the Impact MKII so thank you and you and your family have a wonderful Christmas.

[@jasonbaldwin1915]

Love your channel btw

[@dennisking807]

Great video guys!!! I do notice that the majority of tuning videos are geared towards the.22/.25 calibers. I have the Maverick VP .30 cal w/600mm barrel. Would it be safe to say that I could start a tune for a 30 cal using your reg pressures and HS adjustments for a 22/25 cal.? I’m new at this and it’s confusing to me. Thanks !!

[@aeacvlog2033]

If it were me, I'd begin with a random low HS tension and/or low Reg Pressure and just start feeling around for sweet spots. Steve

[@bikerboywayne1]

awesome vid lovely food for my brain Wayne from South Wales

[@mikecarter4412]

There’s some good info guys. Appreciate the time you two put into making this. Happy Holidays Guys

[@aeacvlog2033]

Merry Christmas!

[@chewyfknrocks]

I own a .22 maverick compact. I think that with adjuster maxed (6mm out) and wheel @7, the stock hammer and spring only allows you to go up to around 130 bar before valve lock starts. That’s why they make heavier hammer weights and stronger springs. With that said the way I get to a tune (ie a specific velocity that is air efficient and accurate)is simple. Use the hammer to tune ~3 to ~5% below max velocity. For ex: 915-5% = desired 870 fps. 3% being for longer barrel and 5% for shorter barrel. I first max the spring load ie wheel and adjuster. Then start with regulator setpoint lower than what I suspect will be needed, say around 70 or 80 bar. Adjust up the set point until 915 is reached. Then turn in the adjuster screw and don’t forget to put it back on 7 lol (or whatever number you want to shoot on) until you see the FPS drop to 870. Of course 870 might not be the speed you need for your pellet weight or barrel but that same process is how you get the valve to be shut as the pellet leaves the barrel making it efficient and minimizing air turbulence behind the pellet. Also for one complete revolution on the adjuster spring is approximately 1/2 mm. Which also is the incremental steps on the power wheel.

[@roberthales9724]

Very entertaining and informative. Thank you for another awesome video. Merry Christmas to you and yours!

[@aeacvlog2033]

Merry Christmas!

[@MontanaAirGunner]

Man I really loved the infoamrion given here! Thanks for that it was a great time just listening to all the answers and it did really help me out as a detail oriented person.

[@AEAC]

👍🤓

[@ervinmorse1350]

This was good for me being new to PCP still lost though on tuning.

[@AEAC]

Ervin. Watch my most recent video - the Avenger .25 Tuning Guide. I take the audience through tuning basics there that can be applied to all PCP airguns... I presented model charts and everything. Best, Steve

[@malc1730]

brilliant Guys I shoot a maverick and you have you have answered a lot of my questions atb merry Christmas an happy new year

[@luisspearhead]

What a great Video....learned quite a few things ... 😀 Thanks .

[@adventuresinblackduck9539]

I think it’s a great idea. Id enjoy it. Thanks PJ.

[@ronklug6395]

Interesting video. When are you going to do a review for American Air Arms?

[@AEAC]

Thanks! Couldn't say exactly but they reserved a slot for 2022, so sometime this year... whenever they're ready. Steve

[@iPsychlops]

Definitely not a waste of time, thank you!

[@AEAC]

👍😁

[@georgeashby9955]

Great video but here in the UK we are stuck with 12 ft pounds which seems to make it muck harder to tune just under or close to 12 ft pounds. If you could do a video to help us guys would great especially on a FX crown & King. Have both of theses guns in 177 and my crown from new was only shooting at 9.3 ft pounds so I tried to get it higher say go 11.6 ft but I can’t get in any where near 11.6 I can get it lower which is no good to me. Any help would be much appreciated. I keep all your videos and subscribe

[@irishcracker9602]

Great information. Thanks dudes. Merry Christmas.

[@aeacvlog2033]

Merry Christmas!

[@starlightHT]

As I like to tune it, it's 140 bar (all without touching the regulator again) and tune the hammer until it's accurate, moderate sound and not sounding like a crazy goat every time I press the trigger. Only then do I see the speed. I'm lazy and my way of tuning too. For the redesigned, heavy sulgs and .25 caliber.

[@midwesttacticalair7742]

Great work Steve.keep it up,and happy holidays

[@aeacvlog2033]

Happy Holidays!

[@nolancaudill1712]

When you talk about backing the hammer spring all the way out on a Fx i assume you mean turning it counterclockwise?

[@AEAC]

Correct, or whichever way you need to turn it to reduce tension.

[@frankpflumm2468]

Great Job. I've been watching the AEAC channel for year and half now, always learning something new. 1 ? though. Where can I get that cam replacement wheel for my MK2 Impact?

[@aeacvlog2033]

Utah Airguns should carry them. I forget the name of it but in my Justin Welch interview from RMAC, he says it.

[@mikepi660]

Thanks guys, you taught us much,,,

[@AEAC]

Thanks!!

[@morewind11]

Thank you both for taking the time to do this excellent video! Question...when is it time to quit and refill the FX Maverick - 130 bar? They don't mention a minimum pressure in the manuals that I have seen. What do you think?

[@aeacvlog2033]

When the shot chart falls off from flat, it's time. This'll be different for every tune. That's why a single point isn't outlined in the manual.

[@morewind11]

@@aeacvlog2033 Great answer - Thanks Steve!

[@morewind11]

@@aeacvlog2033 Hey Steve, another question regarding pellets- JSB 25.39 or 33.95 Diabolo for 100 yard target shooting?

[@aeacvlog2033]

@@morewind11 The "redesign" is a better pellet all the way around but not every gun can push it to optimum speeds.

[@morewind11]

@@aeacvlog2033 I've learned an enormous amount from the two of you, keep up the great work!!

[@rustybrouse5888]

I just can't say anything more but thank you both!

[@rustybrouse5888]

My new dreamline I got last week has the new wheel on it!

[@starlightHT]

I would like to see American brands show a little more love for the AEAC. For a moment it looks like you're grounded. I would love to see America air arm evol and see RAW again.... Europe and Russia love AEAC for sure. And thanks for your work and dedication to taking sport to a brighter future.

[@aeacvlog2033]

Here's the dealeo... American Air Arms has expressed interest and you'll be seeing them on AEAC. Crosman is always supportive and recently sponsored the Marauder Semiautomatic vids. Umarex USA dried up on me after the Gauntlet vids I did... they did invite me to cover their booth at 2022 SHOT Show however. AirForce/RAW requested I remove them from my quarterly email invites.

[@jimstewart5008]

Some guys get excited when a new date is set for a MMA fight and look forward to fight night, I am the same way with your videos Steve!

[@aeacvlog2033]

That's cool Jim! Thank u buddy.

[@williamarmstrong392]

Very informative !! Thanks you guys 👍

[@John-rx3xx]

thanks guys Merry Christmas to you and your family's

[@aeacvlog2033]

Merry Christmas!

[@leroyjful]

When if will AEA, have an upgrade technology similar to that of CAP air guns with the Dragon Claw .50 cal???? I for one will love to see 1100 foot pounds of energy in a AEA Challenger .50 cal...

[@tripleceas]

These guns tune soooo easy these days. Compared to the days of my Marauder with an internally adjusted regulator, finding balance with an FX is a couple hour adventure at most. It’s squeezing that last 1-2% out of accuracy that will take 99% of your time if you want to compete with the big boys! There’s almost no 100% effective way to verbalize the process. You just have to do it. I’ve shot thousands of slugs out of my 25 Impact and haven’t replaced an o-ring yet. Had the regulator from 90-150bar back to 90 and back to 150. These guns are incredible feats of engineering. One thing I don’t hear guys talking enough about is seating depth. to squeeze the most accuracy out of slugs, it’s an absolute necessity. Get an adjustable probe (pin or pellet) and move your depth forward a few thousanth’s or back a few and then test. When your ES is solid but your groups are not great it’s either projectile length, seating depth or both. Try polishing your barrel, I’ve never gotten worse groups after lightly polishing. I had to polish the heck out of my superior heavy liner and now it shoots beautifully. Clean, polish then clean again. These guys 👆know a thing or three about that! Great hobby, even better community and it wouldn’t be possible without guys like AEAC or PJ. True class acts!

[@leecolclough2492]

Excellent video n content well done to both of you with sticking with this as its a mine field of tuning as said cheers lads for all your efforts on the tech were faced with nowadays 👍👍🤣😅💥💯

[@aeacvlog2033]

Working on it, lol! Steve

[@flashgordon99999]

Great info. Yes to more of the same. Merry Christmas

[@aeacvlog2033]

Merry Christmas!

[@vansantsam]

Short barrels also require a short burst of high pressure vs a long burst of lower pressure.. So in effect you have to run the regulator and hammer at a higher setting..

[@Echobar]

😀 thanks for the great content😀 New to air gunning hoping to someday get a pcp.

[@AEAC]

😁👍

[@brostelio]

I love you guys!

[@tubeyuber803]

Thank you. Great video!! Looks like PJ has a wooden ear and I can’t get past it. 🤣

[@AEAC]

😄👍

[@mariosharidimou3508]

I guys, Excellent content! Really appreciated! Your suggestion please: 0.177 FX Impact MKII, 500mm barrel Would like to shoot the JSB KO 13.43 slugs. What is your suggestion with regard to reg pressure and final FPS for best accuracy?

[@aeacvlog2033]

Gotta let the gun tell ya that Marios. That's the only way to know. Best, Steve

[@EdBraunbeck]

Thank you for addressing my comment. Are there any benefits to be gained to reduce the delta in my 1st reg (150 stock) and 2nd reg (80)? You mention that 25-30 difference is optimal. This is on Impact M3 22 cal (600mm).

[@EdBraunbeck]

Great video by the way! ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ I learned a lot and got an hour's workout and breakfast in during the session. 🏁

[@aeacvlog2033]

Well the 2nd reg is what the valve sees so that's the one with the most control over outcome. If it were me, I'd begin with 25-30 bar between them and see how things went.

[@wruehl]

Great video guys!

[@medicnine3602]

Great video!!! Great information!!!

[@robrobertson1586]

For the UK, perhaps only for the UK shooters, you are restricted to 12 ft pds, what tune are you doing?

[@aeacvlog2033]

Same approach. Back everything way off and see where you're at. Go from there 👍

[@ahmondeboxley2950]

How much will you charge to to tune avenger bullpup

[@dougdishler2086]

Awesome man loveed it yes do more

[@vansantsam]

I have an Avenge-X that has creep (500 psi worth of it), I am on my second regulator (warranty) with no change.. The regulator can start at 2250 psi, one shot it will be down to 2000, after 10 shots it will be down to 1750 psi.. A few minutes later it will be back up to 2000.. I have noticed that If my main tank is over 3000 psi then the regulator will settle and hang around 2000 psi but under 3000 it wants to settle around 1750 psi - no rhyme or reason for me..

[@rossfrid3159]

Please bring in more “helper” co-hosts