![]() But as hundreds of shooters have proven time and again through the years, when top-quality component parts are assembled with great care the AR15 will deliver accuracy once thought possible only with the bolt-action rifle. I mean, a rifle that looks like something out of the pick and shovel section of a hardware store should not be this accurate. The AR15 magazine accepts cartridges loaded to overall lengths up to 2.275 inches longer handloads must be fired single shot. To me, this is remarkable considering the fact that it was designed for use on the battlefield rather than at the target range. When fed decent ammunition a really good AR will keep five bullets inside half an inch at 100 yards with boring regularity. I was impressed with the performance of those rifles back then, and I am even more impressed with the accuracy of top-level AR15 rifles being built today. Not too many years ago I spent a bit of my time shooting super-accurate bolt guns chambered to 6mm BR Remington and 6mm PPC in registered benchrest competition, and my averages for five five-shot groups at 100 yards were always well inside half an inch. A big difference between the two rifles is you can handload ammo for the AR15 but you can't for the 10/22, which brings me around to what this report is all about: handloading the. Shoot match-grade ammunition rather than the mart special stuff and group size will likely shrink even more. Switch out their triggers and you should be able to shoot them more accurately.īullet for the intended purpose is critical in building good. Hang a match-grade barrel on either rifle and you will likely be rewarded with a noticeable improvement in accuracy. Both can be transformed into precision shooting machines by simply upgrading various parts. Then again, a 1/9 twist barrel for a 77/22 and some Aguila SSS, is probably a much easier long term solution.The AR15 and the Ruger 10/22 have something in common other than the fact that both are semiautomatics. I was mostly thinking of using these loads in more of a SWOS, silent without suppressor role, so no worries regarding baffle strikes. It also might take up more case capacity, which would MIGHT good for a lot of reasons regarding powder ignition, case to bore expansion ratio, etc. Has anyone ever experimented with turning the 75 BTHP around? They would hit harder because of more frontal area, although real world results might not be worth it.Īlso, it would move the CoP closer to the CoG, basically leaving the mostly hollow nose, now, a drag-reducing tail. And you would have a much more quiet setup on the 223 subsonic if it was functioning in the single shot straight pull operation. Even if it would, why? You would get much better terminal effect with a 300 whisper if you want subsonic semi-auto operation. The 223 subsonic would more than likely never be enough to operate a gas system. Yeah, you just answered your own question. The 300 Whisper works like this, but then again that uses more powder. ![]() I have thousands of those ready to go.Īlso, I think that a wide gas port opening in combination with a pistol length gas system and a light weight buffer/spring could allow for cycling. I'll take the advice given here from other folks and use lighter, shorter bullets. It will not have sufficient gas pressure to operate the BCG, so you'll be shooting straight pull bolt action style.ĮTA: I guess if I'd read the thread I wouldn't duplicate other's effort Since we're talking about a fast burning pistol powder here, velocity in a shorter barrel likely won't be much less. Using 4.5gr of Solo 1250, the bullet gets 1052 fps from a 24 inch barrel. Is there a load to make H335 send 75grs subsonic? Also, will 75gr bullets stabilize enough at that low of a velocity to prevent baffle strikes? I'll be shooting out of an 18" 1x7" twist WOA SPR barrel.ĭisclaimer: I know that any load data provided is "use at your own risk" and I know to start loading 10% less than the provided load and work my way up.Īccurate Arms lists a subsonic load with Hornady 75gr BTHP. I've read that subsonic rifle loads usually use pistol powder, and usually only around 5gr of it.ĭoes anyone know the best powder and charge for 75gr subsonics? I've got a bunch of H335 that I use for 55gr full power rounds. I'll be using bulk 75gr HPBT bullets from wideners and wolf SRM primers. 223 suppressors, which is what I'll be shooting my subs through. I've searched the archives, but every thread about sub. ![]()
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