![]() ![]() 338LM, 6.5X47, 308 etc through cans and it works great. This is just my opinion based on quite a few years of playing with subsonics and suppressors. 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. 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. 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. 338 BR upper on might make it worth doing. On the other hand taking your AR and putting a. You don't gain enough with the subs to make it worthwhile when you're limited to. I bought one just to play around with this kind of usage but haven't gotten to trying it yet.I think more realistically you build a dedicated subsonic rifle and just shoot regular HV ammo out of your. Bear Creek had some really cheap 14.5" barrels with pistol gas systems on them years ago, I suspect there was a batch that got mixed up between a 223 & 300 Blackout to come up with that oddity. ![]() Work with an extra large gas port & short gas system. When the match brass has been reloaded 5X, I consign it to zombie ammo and top it one last time with 55 gr. This subsonic ammo is not designed for barrels longer than 24. This ammo is loaded to SUBSONIC speeds for barrels from 10 to about 22 barrels. Once-fired LC brass, Hornady 55 grain SP (soft point) 1030 fps. Ideally it could run in like a standard 16" carbine gas length barrel setup, or worst case only require a single component swap or enlarged gas port w/adjustable gas block to switch from one round type to another.Īs cheap as uppers can be built any more, you could dedicate an upper to it if you're really serious about it. Our top selling 223/5.56 SUBSONIC round (priced per 100 rounds). This ammo is loaded to SUBSONIC speeds out of a 16, AR-15, 5.56 barrel. Once-fired LC, WCC, RP, FC or Win brass, custom 87 grain flat base HP bullet 1040 fps in 16 barrel. 223/5.56 SUBSONIC round (priced per 100 rounds). If you're still interested in something like this, there are 100gr 224 bullet moulds, I have wanted to eventually work on something like it for years - a cheap cast bullet of 100+ grains that could be loaded from subsonic up to 2200fps+. Website will be updated as soon as bullets are in stock. You'll still need a really heavy bullet & the right slower pistol powder that produces enough gas at the gas port. Reducing carrier weight, buffer weight, spring, increasing gas port size, adding a suppressor for more pressure, all of those things can help. A 100gr sub would give energy in the range of a 380 pistol round. Even then I'm sure it would be hit or miss depending on the gas system of the gun & gas port size. There are 1 or 2 companies I've seen that sell a 100gr+ subsonic that they claim will cycle an AR. You'll have no issue creating a sub load, cycling an AR is the major challenge here, if that's part of the goal. If you need to do pest control, it will be much more cost effective to just get a. Plus you can run very capable 125 or 150 grain supersonics in it. 300 BO exists and delivers something like three times the energy on target. ![]() And they already make 22LR subsonics.Īs others have said. It's a goal that even if you manage to accomplish, you end up with what basically amounts to a 22LR for energy. 223/5.56 AR that was essentially useless for doing anything but running subsonics. You'd basically need a lightened buffer, lighter spring, and a tuned gas system to generate enough back pressure to make the first point work. So not Titegroup or Bullseye and also not H110. Pistol powder yes, but something in the lil'gun or 2400 burn rate range that also doesn't mind being very low density. Prefer ADI or Reloader powders as IMR powders are hard to come by in Aussie Land. It would take a very short barrel, a suppressor, and an absolutely perfect balance of pressure and velocity to cycle. I am thoroughly convinced of a few things: The highest velocity at almost 1500 fps didn't even begin to cycle. In my 16" AR, the lowest I got to was 1055 fps. Good To Go 223 Subsonic ammunition is designed to operate at speeds less than the speed of sound, which avoids the bullet making a supersonic shockwave or. I tested it last weekend with AA#5 and 77 grain cast bullets. ![]()
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