300 Blackout - Picking better powders to fix my gas problems

[@vomitingwithungodlyaccurac3218]

These videos are more educational than my college classes. Different course material, but your method of teaching is far more effective.

[@JohnnysReloadingBench]

Thanks, man!

[@jdrollason]

Professor reloading right here. Mixture of chemistry and physics.

[@rungun.bisnus]

There's probably enough information about reloading that could possibly even equivalent to a masters degree

[@ammetron]

"Studied every Johnny's Reloading Bench video" should out rank most degrees on resumes for the firearms industry.

[@G5Hohn]

I have an MRA, a Master’s of Reloading Arts.

[@DummyRound]

Glad you're doing better, Mr. Bench.

[@JAM4MORE]

Still my favorite series from Johnny. 300blkout will always be my first love in reloading.

[@bobborlog1677]

Yup its amazing it's been a great experience so far. I started watching day one with 300blk for the sane reason as most 300blk factory ammo is way to expensive and we can make it quiter and cheaper.

[@H.R.6688]

Good lord! Jrb is on! Somebody get me a beer!

[@blainecolbry3192]

I've been handloading for handgun, rifle and shotgun for close to 40 years and you new guys need to watch this man and take notes, he's got it going on. I have a load developed for almost every caliber I shoot and own but just bought a new 300 Blackout upper I need to work a load up for. I'm having fun just researching all over again like I did 35+ years ago (but we didn't have internet then) thank you Johnny, you gained a subscriber.

[@rungun.bisnus]

Johnny was reading my mind, I need to find a powder to cycle subs on my 6.25in barrel.

[@Anon585]

Thank god I have a new reloading vid to fall asleep to!

[@trigerfingers1911]

Glad you got everything worked out with the 300 blackout… Glad to hear you’re feeling better and take care.

[@rmbettac]

It’s very cool that you have so many viable powders that you can run down a challenge that novice loaders aren’t ready for. Your thought process on burn rates for subs and supers is really valuable knowledge.

[@bob_mosavo]

Thanks, Shannon 😁

[@garyh.7282]

Now you need to get an 8.6 Blackout and do the same thing . Keep up the good work and get better.

[@breed4659]

I used to watch this channel all the time. Had a baby 2yrs ago and set my reloading stuff to the side for a while. Got an itch today to maybe reload some 300 subs this weekend. First stop for advice had to be johnny. Great info dude. Thanks for still being here

[@ammetron]

The God's be good! Word on the playground was a video may be dropping soon. Glad to hear you're doing better!

[@joelclark2130]

Welcome back, glad you're feeling better. Hope to enjoy many videos in the future. Keep up the good work Johnny.

[@JerrBearTactical]

This was one of your best informative videos to date on 300BLK. Thanks for sharing Brother 😁😉👍👊🇺🇸

[@jakeeames725]

Thank you for your time Johnny!

[@JustinCglass]

To respond to your concern about babbling at about 11 mins in; This is the research and development process to tailoring the ammo to fit the rifle you’re working on I do the same after I buy a new gun Gotta make sure your equipment is working dependably and to your needs I like observing these processes as I may learn something as well Thank you for recording your process

[@upnorthreloading2214]

My nephew has been getting into reloading and one of his projects is an SBR. First resource I talked about, and linked to him, was your channel.

[@f_blake6096]

I'm a few months in on my reloading journey and your videos have been very helpful. Much appreciated for the time and money spent to educate us.

[@jman28lamplight]

Best reloading content on KZbin. Thanks for sharing

[@AgileK9TopDog]

Glad to hear you're on the mend.

[@glendavis9663]

Good deal JRB is back 👍👍

[@glendavis9663]

No worries JRB. Glad to see your feeling better. Good to see you loading 300 blackout

[@Whoadayson]

Always always enjoy and get alot from your videos! Im astounded that your sub count, esp here on free sub youtube, that your not way over 138K but thats the fleeting nature of the internet. I was glad to be a part of your short streaming stint (and fully understand why you stopped that!) and a small helper as a patron! Its been awhile since I watched regularly, but I see now your taking a break too seemingly. I hope all is well and look forward to your return! Im not much a shotty guy but I appreciate your venture into that too. Hope to see ya soon! Thx man

[@driftertank]

I recently put together a Blackout upper for my AR, kind of cheaped out as it meant to be mostly a range toy. 10.5" Faxon gunner barrel, DB BCG, lowpro gas block, spike's tube. Griffin GP7 can pinned to bring bbl to 17". After reading and seeing all the issues people have had getting guns to run reliably, i suddenly feel like ive been exceedingly lucky...it ran subs and supers before the can, and then with it as well, and the only malfs I've had so far were 2 FTFs with cheap WWB 200gr subs. Those things ran filthy! Ive just started working up loads for it, but from Sub-X at 900 to Vmax at 2200, it has fed and tossed brass 3-4 o'clock every time.

[@Chato4570]

Good to see you back! I'd love to see some 6ARC and lightweight 6.5 Grendel comparison videos

[@kermitsteck3148]

I think you saved me tons of work and expense! Thanks!

[@brianmiracle2718]

This problem of gas difference in subs and supers is why I run dedicated uppers for each, with gas blocks adjusted to optimize each. I got tired of gas issues and dirty burning/unburnt granules.

[@FMDad-dm5qo]

This video inspired me to do a miniature, Johnny-style “powder shootout” for my 300 BLK subsonics: Gold: Acc 1680 (runs great, most accurate) Silver: CFE BLK (runs great, solid accuracy) Tin: H110 (not enough gas, subs don’t cycle well in my 16” pistol-length-gas gun). Love H110/296 for supers, though.

[@nosyarg1997]

Very useful information. People have the darndest time dialing in gasblock. This shows how to find the sweet spot for their ammo and gun.

[@CCXRS7]

Not gonna lie, I thought Johnny was a little off his rocker when I saw the powder selection in the last video. Made for a good follow up vid though. Almost like he planned to keep us on the hook!

[@charlesvaughan7148]

Just finding this video. I use H110 for my subs. Have not picked a powder for the supers yet. Great Video! Keep it up

[@kcvance1974]

This is the most helpful video on KZbin for me. I’ve got the same 10.3 in barrel in my SBR. Nothing better than hearing that steel ding with the subs!

[@VSO_Gun_Channel]

I’m making this comment early in the video. I shoot a lot of 300 blackout. In my opinion, your green weights are off and you would’ve had an easier time if you had gone heavier all around. 150 grain for the supers and 220 grain for the subs.

[@spyderxtra777]

Just heard the powder choices, and my bet for what works is loading both subs and supers with w296.

[@RMM--uv7uk]

Every video is so educational. Keep the videos coming.

[@paulharveu526]

Enjoyed the video. I need to do some more work on 200gr cast PC subs, to get them to run with a carbine gas, 16". Got started working on it, then got distracted getting Xbow ready for season, then picked up an inline muzzleloader, and been messing with it. Short attention span....

[@jamespugh]

Glade your getting it figured out . Shannon. Hoping so

[@hansshaffer3788]

Thank you SO much for troubleshooting this! i was ready to give up on my 300AAC build, but you've convinced me to press on!

[@agbrown308]

I’m so glad to see a new Johnny’s 300BO video 🤩🤩🤩

[@texpatriot8462]

Great video and Powder Stash flex . Glad you are feeling better.

[@kyle4910]

Great to hear that you are doing better. We all missed you

[@bisleyblackhawk1288]

Lately I’ve been going through severe JRB .300 BO withdrawal…glad to watch the latest!!! “Stuck in my craw” the chickens are defiantly impacting you my friend (been there…gotta love those fresh eggs) 🐥🐔🐓🤔😆😆😆…keep up the videos 👍👍👍

[@Morphz_Unlimited]

Have a black hole Weaponry 10.3” barrel with a Geissele gas block. What works for me is a A2 buffer spring with a heavy buffer. I am able to cycle both subs & supers consistently. I use Accurate 1680 and H110.

[@robertpagel8951]

Hey Morphz, what is your H110 load workup?

[@Morphz_Unlimited]

@@robertpagel8951 150gr Hornady bullet; H110 15.8 grains 2.075” OAL. I crimp at the cannelure

[@jeffallen3382]

Good to hear you're feeling JRB!

[@cw2a]

Hope ya feeling better brother!!

[@mrrogers2611]

N120 is magical, forget about buffer, gas, BCG tuning, get N120 and be done with it. It works great for 300BLK, 458 SOCOM AND 8.6BLK subs

[@timturner7609]

Meters like a dream in my dillon too.

[@no-sway3709]

N120 was the cure for making great subs for me

[@K-bob_45]

Is it quiet though? I loaded some 200 gr subs with it and it never seemed particularly quiet

[@no-sway3709]

@@K-bob_45 not as quiet as some faster powders, but has great case fill and plenty of gas. N120 is kind of a cheat code for getting reliable subs with minimal effort. I'm currently trying to work up a load for 147gr subs, but my charges have been too low which results in unburnt powder. Heavy crimp seems to help powder burn a lot.

[@K-bob_45]

@@no-sway3709 I’m probably gonna try N110 next

[@murphytoadster9864]

My blackout cycles and its quiet as a silenced 22 or quieter. Its just the sound of the bolt moving back in forth. Extremely ideal inside of 150 yards urban environment

[@elkhunter6746]

Looks like fun. I haven't shot 300 black out in a while. I will have to get it out there again now that I have all my hunting load's ready for this year. Glad you're feeling better

[@Fast_Lane]

Awesome content! Thanks for putting in the work. This is a huge value for those of us with minimal time to test.

[@1clnsdime1]

1680 and cfeblk are my go to powders

[@Chris-liwymi]

I put my bolt carrier group through my sonic cleaner and have not had gas problem since I am very thankful because I damaged a lot of brass in the process of trying to figure out what the problem was

[@renatusfox6552]

The success you had really shows the importance of validating different powders. Thanks for that.

[@BG-gr7fh]

Excellent work again, just a welth of info here

[@laramiestephenson1143]

Glad you're back and feeling better.

[@s1096cm2]

Your timing is impeccable. I just got my 30cal can outta jail a few weeks ago (waited 14 months). Spent the last year accumulating some different powders (have plenty of all other components). I was going through your old blackout videos and noticed your making new ones with totally different powders than I expected. Here you go again dragging me down your rabbit hole! And I just can’t wait to go! Thanks for doing all this. You have a way of making my brain hurt, but in a good way. Thank you and keep getting well Johnny.

[@mobeus5019]

I had great success with IMR4227 and CFEBLK. I've been running 200 and 220 gr berry's bullets. For Super, I have had good luck with H110. My 5.5, 6, and 10 inch 300blk guns will cycle both suppressed and unsuppressed.

[@chadjones7722]

Works all the way down to 4.75" as we have tested

[@ron4hunting]

friend of mine loves enforcer powder in his 300blk . i use it in 45 acp get great speed and no over pressure . only in 45 acp you have to find old data as it is no longer listed in 45 acp loads . and enforcer is still easy to find right now . you might want to give it a try sometime . great job on your loads shannon !

[@montgomery6104]

👍👍

[@SDMacMan]

300 Blackout again? You're killing me Smalls

[@texasbradley]

Johnny definitely doesn't shy from a challenge. Any reloader will know that doing this kind of a loading session there are a lot of moving parts, a lot of things to remember, and on top of that you need to be precise that well organized.

[@evoltnvii]

Glad your feeling better and great info in this video keep it up.

[@arthurlagasse1994]

Thanks man! Glad to see you're up and running! Been on the fence about 300blackout,you took care of that! Got one in the works! Take care of yourself!

[@cat192]

Glad your skttles load magazine ran well, and that you're feeling better.

[@robinharris6771]

I am accustomed to seeing your Redding turret press. Today you have a Lyman. I am pondering a turret press and these two are my short list. I'm interested in any comments you may have on the merits of one press over the other.

[@nosyarg1997]

Thank god you're feeling better. SBR videos please! SBR 556 loads

[@JaronActual]

I use a JP SCS in my 10.5" BLK as well. I use the lightest spring ( the white one ) with a carbine buffer. Makes it very easy to cycle so I can crank my gas block down and have a slow, smooth cycling, even without a suppressor. As I guessed in your last video, using the H110/W296 in subs would likely work. Glad to see you had success with it.

[@uralbob1]

Man! Makes perfect sense! My BO AR works fine with Accurate #9, but I’ve not chronographed them yet. This is good data to start building on! I might even enjoy some subsonic loadings! So many guns….so little time!

[@scott3708]

CFE BLK work great for me 220g berry and 13gr no issues.

[@robertpagel8951]

How long is your barrel Scott?

[@aaronconner2010]

Great example here of why it’s great to be a reloaded

[@larrymitchell3502]

If everything you do works every time, you're not learning. Like racing: Never break nothin'? You ain't never winnin' either! You got to feeling better, came back & solved the issues by T&E - Testing & Evaluation. Would have been unlikely or impossible without *knowledge* gained thru experience. Building & shooting loads rather than reading. You generously share what you learn - mistakes & all. THANKS. IDK whether you've tried a LaRue trigger. I really like 'em. $100-$118, single & 2-stage, conventional & straight bow. Tool steel so consistent thru thousands of rounds. I prefer two-stage; mine are absolutely reliable, crisp & consistent at 3 lbs. They offer a stronger spring for those who want a heavier pull weight.

[@Nagger666]

At 20:18 the mag actually partially ejects that's what caused it not to pick up a round

[@UncleDuncan5092]

Great stuff Man. 👍🏼

[@The_Privateer]

The key for me to get **good** consistent performance with my 300 BO with both supers and subs was an **easily** adjustable gas block. I use the "Riflespeed" adjustable gas block that has an adjustment 'tube' around the barrel that extends a little bit out in front of the forward-most margin of the handguard. A couple toolless clicks of the gas adjustment ring and it shoots either without having to compromise your loads in any particular direction. I use Win 296 for both, just out of convenience because Win 296 shoots supers sooooooo sweet out of my gun.

[@tfunkhou88]

I’ve only watched part of the video so you may have covered this, but I noticed that when the supers are WAY overgassed I found that with only a few rounds in the mag it would still work. But if the mag was full and the spring couldn’t quite lift all the rounds fast enough the bolt would overrun the next round, or misfeed. Something to consider.

[@jameshill5304]

Yea I’ve been told win 296 and H110 is the same powder as well. I use either of those 2 depending on what’s in stock. I haven’t seen a difference in velocities or accuracy with using both powders. I mainly load the berrys 220 gr 300 blackout bullets with 9.5 gr with 2.230 coal and average velocity of 964 fps out of a 10.5 BA barrel . I don’t use a adj gas block on it either and runs flawless supressed

[@robertpagel8951]

Running 9.6 grains of 296 out of 8.5 and your right they run great. How's your accuracy at 50 and 100? I might give your coal a try and see if I get tighter groups. I've been loading my to 2.185 - 2.190 coal

[@jakeeames725]

Have you looked at the riflespeed adjustable system? Looks pretty neat! Not a regular adjuatable gas block

[@DimaProk]

Well here's what's funny; I loaded a perfectly functional sub/super combo using your earlier videos information:))) Lessons I learned from that video is that 1680 functions really well down to really slow subs and I did use 296 for supers. I don't even have an adjustable gas block but it works well, probably because it's 16" barrel. Also I don't know about Z-max bullets but I've loaded 110gr bullets (I don't know who makes them but they're designed for 300BLK) with 20gr of 296 and got 2426fps from 16" barrel measured with LabRadar. Only slight ejector marks on the brass, totally acceptable so I say you got room to grow.

[@robertmurray1656]

Keep up the 300 black out videos!!!!

[@JohnHilman1968]

I'm not going to correct you because you clearly know more than I do about loading. I just don't have the smarts yet to work out custom loads for all scenarios with powder. Lol But I have 2 300 blk guns one is a 7.5" pistol and the other is a 16" rifle. The pistol is able to run anything. Subs, supers. and I have a krink brake on it so there is some back pressure added though not quite suppressor like. The 16" was a bit pickier. Subs did not run at all very undergassed. Also we are talking factory loads. I corrected this with the action spring going with a 300 blk specific Nemo Arms spring. (Lighter duty). My barrel is a BA barrel and because the gas port is a little undersized it needed a less powerful spring. What ended up happening was subs ran great and supers were overgassed. Added an adjustable gas block and now I have a rifle that will run everything with the caveat that I have to turn the gas down for supers and up for subs. When I get my can I'll have the option to find settings for all scenarios.

[@wr3921]

Ah, the Clausen pickle bucket brass container, a man after my own heart.

[@singleshot2218]

Glad you’re doing better buddy! Hope you continue to stay well! Take care and stay safe bud! God bless!✝️🙏🇺🇸🇺🇸🇺🇸

[@jamespollard1670]

My 300 runs H110 / 296 and CFEblk without a suppessor or an adjustable gas block , 100 % .

[@thastinger345]

I have a JP SCS in my SBR with Q Full Nelson can. I use 4227 for all weight subs and H110 for supers, the SCS has 2 tungsten replacement weights but the spring is whatever it cam with. I don't have an adjustable gas block and it functions flawless with either subs or supers. 4227 is where its at for subs, 9.9gr and you can load everything from 190-220gr with that charge.

[@faithful53]

Sorry responded before finished video. But been using CFE black for years

[@zinfendal0]

Lol glad I am not the only one. That when crap don't work. I gotta know why.

[@robertsmith6124]

Glad I found your videos. Just got a 300blk. I have been going over load data and looking at what powders I have, nice to see some I have. Not sure if you have tried 4100,I have a fair bit and was thinking of starting with it.

[@johndavis3143]

My favorite powder for supers is L'il Gun, the one you didn't try, but I'm running 125's. I tried the online Hodgdon Data for the 125gn Nosler Ballistic Tip in looking to create a hunting round and then found a source for 125gn FMJ's that are almost the exact same size and shape. I load both at the fully stuffed 22 gns in Remington or Hornady brass (NOT cut-down 5.56 brass) and get superb performance out of my 16inch CMMG barrel.

[@AKITM]

Have you tried the 300 Blackout buffer spring from Nemo Arms? I've had good results with it and an H2 buffer. Before that, I was using a Phase 5 pistol buffer and an H3 buffer and had a lot of ejection problems with subs. My bolt wouldn't lock back either, even with a standard carbine buffer. Mind you this was with factory ammo. I have yet to get started with hand loading, but your channel looks like a valuable resource. I appreciate you documenting your 300 Blackout experiments. Subscribed.

[@sauce6092]

Ive been working on an ak pistol sub/super project. Cfe blk did well for me

[@adventure5413]

Careful with 5744 I've had issues with lots of unburned powder accumulated in the suppressor.

[@Thatblacksilverado31]

I’ve only used aa1680 and I’ve not had any issues with subs or supers, I haven’t had a need to change either

[@lemonaid1605]

Shooting at the range all ways makes me feel better, hope it improves your health as well. I know it was all about proper function but there was the chance to get some accuracy data as well (think of the money you could have saved!).

[@5150miner]

Good to see you back! I’ve had feeding problems with the 190gr Sub X bullets and I don’t know where the problem is but I think it’s a magazine issue. Tried Magpul and Lancer 300 BLK specific mags. Running 11.8grs of 1680 with a 2.07 COL. Thoughts

[@JasonSmith-dj3pq]

Best powder I found for 300 Blackout is Shooters World SBR Socom. It’s cleaner and functions the best.

[@NSghostoif5]

Good to see ya

[@roul3688]

I’ve used some of your loads (after verifying of course) in a 10.5” PSA with a can and haven’t had any issues. IMR4227 and H110/W296 work great w/ Hdy 208g ELD and Sierra 220g hpbt. I can’t find those 190g sub-x anywhere.

[@SM-eu5xl]

300 Blackout is the most fun cartridge for me! Not sure what it is about it, but its like the goldilocks cartridge.. Kinda does a little of everything.

[@HedgeMaster26]

I'm planning to work up some loads for my 7.5" 1:5 300 Blackout. I picked up some N110 and have heard it can run Supers and Subs through it. I also picked up some Accurate 1680 to try out and will be running 220gr for workup. Be interesting to see how it works. Glad you're feeling better Johnny.

[@robertpagel8951]

Hey Bill, 1680 is good, so is IMR 4227. If you have a suppresor Win 296 also works ok. I'm casing the best coal for the best accuracy with 296.

[@misfitactual6718]

Love your videos! Also I'm sure you've heard this plenty, but have you considered the 'rifle speed' had block system thingy?

[@sebbld9040]

I had great success with vectan sp3 powder, both in super and subsonic, you may want to try this...