The bolt carrier appears to move about 1/2" and then closes back. Since I don't have an adjustable gas block, the action will attempt to cycle just barely. Any keyholing at all and that load does not get any more consideration. Only after several have passed that test do I attach the suppressor. At the muzzle, about 10 or 15 feet and the 3rd at about 20 yds or so. I set up 3 sheets of cardboard at different ranges and shoot all three at once to test stability. Need to test the rounds on cardboard at as close a range as possible (like 6") to insure the bullets are stable when exiting the barrel. I have not done any accuracy testing yet.
This with CCI #41 primers and mixed brass.
#223 SUBSONIC LOAD DATA CRACK#
4.6 gr broke the sound barrier and I had the telltale crack on about 50% of the rounds. The load I settled on was 4.4gr Trail Boss. I have worked up my first 223 sub load using 55gr FMJ bullets. Try the round with your can off to make sure it's stable before silencing it.
I've only reloaded for bolt actions, never for my AR and certainly not subsonic. I know not to believe everything I read, but I just want to make sure. The reason I ask is because I read on the internet that too little powder in the case can cause a pressure spike in the gun and blow it up or the bullet may not stabilize. Can too little of a powder load be harmful for your gun or silencer? Blow up the gun or cause baffle strikes because too slow of speed to stabilize the bullet. The best info I have seen so far is this old thread ĭoes anyone have any new info for load data that will be fairly silent? I found several people asking for reload information on the internet, but no real data. I do not care if it does not cycle the action. 223 is not much better than 22 LR but I would like a round that is quite. 223 for my SBR with use of a Ranger 2 can.
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