![]() Its got a shorter barrel then your CZ rifle. I shoot standard ammo out of my Walter P22 with suppressor and its still pretty quiet. Maybe I'm wrong, but I'd like to know why I'm wrong. I just fugured it would be the same type of deal with the. But use subsonic and it's as quiet as a mouse. 22 rifle it is just as loud as without the suppressor. Well, I know that when I shoot high velocity ammo in my suppressed CZ. ![]() So, yes, obviously subsonic ammo is quieter than supersonic, but how this relates to your 223 cannot be directly compared to your 22LR. In a small little CQB pit shooting at targets 10yds away the sonic crack can still ring your ears a little bit just because it's reflecting off the target so close to you. If you are using it on a 50yd+ range then you'll be just fine without earpro. Your suppressor will knock that down to hearing safe levels even if you do still hear the sonic crack. However with a 223 (particularly in shorter barreled AR's) there is a LOT of muzzle blast and that is what deafens you. Try subsonic 22LR in an unsuppressed 22LR and it's fairly quiet. Even with a suppressor most of what you hear is the sonic crack. With a 22LR in a rifle length barrel there is very little heard muzzle blast in the first place. Just shoot the damn thing and you will be fine. Why is it that when people get cans they immediately think that they need subsonic ammo? You wont find a subsonic round that is going to cycle the action of an AR unless you go to a 300 whisper or something of that nature. Originally Posted By: IrelanderOriginally Posted By: Outsydlooknin75Federal Bulk. The 223 is designed to travel 3000 fps and works great with a can, but if you want quiet either go with a 22 LR or build a whisper. I have also thought about cutting a few coils off the standard buffer spring to see if this helps.I hear you on the full power ammo with a can. I need to find a reduced spring that I can try. I am leaning towards playing with the buffer spring and/or buffer. The idea of changing out the bolt carrier and gas block and such is not an option. So, my solution needs to be simple and easily available to all shooters. What are some options I can do to help aid the cycling? My goal is to have a subsonic round to sell to any and all shooters who have an AR-15 with 16" barrel and a 1:8" or 1:7" twist barrel shooting suppressed. When I get my speed up just above 1100 fps (supersonic speed), it will cycle and the bolt will lock back on an empty mag. ![]() It will eject the spent case, but the bolt will not lock back on an empty magazine. When I get down to the speed I need, I can not get the bolt carrier to fully cycle the next round. I have a working subsonic load with both bullets in a standard M4 type, 16" barrel shooting suppressed. I am working with some custom 87 grain and 94 grain flat base, HP bullets that will stabilize in a 1:8" or 1:7" twist, 16" barrel. I began working on my 223 subs that will cycle an AR. I need some help guys! I know ammo very well, but I don't know the inner workings of an AR as well, like some of you do. ![]()
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