![]() There is another cartridge, basically a stolen version of the. 223 based cartridge that does this, it's called the. You'd need to use a powder slow enough, and enough of it to allow sufficient pressure at the gas port, and a bullet heavy enough to act as a cork, to again, allow the pressure. 223 be achieved that will cycle a 5.56 AR? Maybe if one could load a 150-200 grain bullet. I've experienced enough lodged bullets and they aren't fun.Ĭan a subsonic. Can one use light bullets in subsonic AR loadings? Probably, but I won't. In guns w/o a gas port I use lightweight bullets for subsonic. I know the 100 yard group was terrible because the bullet has destabilized. That was many years ago that I did that work and some of it is sharp and some is fuzzy. At 100 yards the bullets are keyholing and groups were around 4" if I remember correctly. It was a tackdriver out to 75 yards but with a rainbow trajectory. I think my subsonic AR load used Green Dot and i know it used a Sierra 70 gr. I also don't like using really fast powder. Of course with guns having a gas port near the muzzle, or entirely absent, that possibility is greatly reduced or eliminated. You also won't experience lodged bullets in the barrel. You'll hear it (or not hear it) when you go subsonic. I suggest that they start slightly higher, into the super sonic range and work down. Oh, and you had better know what you're doing. So to counteract this I tell folks to do exactly the opposite of what is suggested when loading. If too little velocity is attained or the bullet is too light the bullet doesn't exit the barrel and the pressure can be heard to FFZZZZZ as it leaks out the port. We're not dealing with much pressure when using fast powder in the 5.56/.223 when the bullet reaches the gas port. I like my subsonic loads to use a heavy bullet for the AR. The problem with subsonic loads in an AR is the gas port in the barrel. Sure it could be fired out of an SBR or handgun, but it'll never reach much above subsonic and be safe. I think more realistically you build a dedicated subsonic rifle and just shoot regular HV ammo out of your.Mark got it right, subsonic and not normal 5.56/.223 velocity. ![]() I tried this recipe using some Sierra 55 gr soft point boat tails and it worked fine. Anyone have information on subsonic loads for 223/5.56 using H4895 or other powders with 65gr/69gr/75gr bullets for use suppressed I know H4895 has been the Military's main powder since WWII and heard that it works well with under charged loads and less than 1,000fps. You don't gain enough with the subs to make it worthwhile when you're limited to. Trying to get something a little quieter for my 223/5.56 SBR. On the other hand taking your AR and putting a. When loading a Barnes TSX, Tipped TSX or LRX bullet, your rifle may prefer a bullet jump of anywhere between. 338 BR upper on might make it worth doing. You've got a 300gr subsonic telephone pole coming out of the barrel and with good loading and workup with your rifle you can hit dogs out to 500yds with a heavy bullet and do it quietly. I know some guys think they should have subs for any gun they carry with a can but it makes more sense to carry a suppressed. That way you can take care of any close in stuff quietly and save a lot of time on loading a basic 22LR equivalent in your rifle. This is just my opinion based on quite a few years of playing with subsonics and suppressors. Disclaimer: 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. I tried 4.0 of TB at one time with a 55 gr bullet. 338LM, 6.5X47, 308 etc through cans and it works great. The 223 subsonic would more than likely never be enough to operate a gas system. ![]() Tite Group is a pistol and shotgun powder. Even if it would, why You would get much better terminal effect with a 300. Trying to reach typical 223 velocity with it would result in a catastrophic failure. The suppressed blackout ARs still have a loud sound from the action cycling. Even using it for subsonic loads it would have an extremely low case fill and would have unreliable ignition. A bolt 300 blackout suppressed with subsonic would be much more quite. I just paid for the 300 Blackout date (its just. The 190gr bullet referenced is the Interlock bullet (which is discontinued) and the data is not subsonic. They chronoed around 950 fps from a 23 Contender with a 23 barrel.
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