Plus, Beck Ammunition sells an expanding hollow-point. And, inside 50 yards, there isn't much (if any) bullet drop inside 60-70 yards. 223 subs because I'm dealing with the same velocities but a larger projectile. I've had a couple get away from me wounded (which I later found dead). I have been using CCI 40-Grain Subsonic Segmented Hollow-Point, which seemed to put down possums and other smaller critters better than the solid point Aguila and other CCI subsonic rounds I am accustomed to using, but they weren't doing so well against larger raccoons. 223 subs were 100% subsonic through this larger can. I also have a 1.765" OD / 1.480" ID titanium + aluminum form 1 can which obviously has much more volume than the smaller titanium can, and the. 223 and 300 Blackout rounds were going supersonic. I have a 1.5" OD / 1.350" ID titanium form 1 can, and it was in this can that the. I went to a friend's house last night and brought all of my cans. They make a "quiet" version #0970 that is only 710fps, but I'm not sure I would mess with it. I don't see supersonic speeds from the #0064 out of a suppressed pistol. They are pretty devastating on small game. 22 world for varmit, you might try one of 2 segmented ammo offerings from CCI. If you want expansion, you need to be looking at some of the exotics like Maker or similar. So primarily air temperature will be the biggest factor.ĭifferent powder burn rates will greatly impact what the effect of barrel length will have on the speed.Īlso most bullets for 300 won't have any expansion at subsonic speeds. The speed in which they will break the sound barrier will depend on the air density. With the test of my ammo, I would be increasing the speed a bit on my 9" load and maybe backing off a touch on my 16" load if I was gathering critters with it. My reloads (mixed case) using A1680 with a the same bullet were 918-945fps from a 9" and 1095-1120fps from a 16" barrel. But I've clocked some reloaded ammo that was just as bad. The ES and SD of both were not what I call acceptable. I see 52, 55, and 75gr and they are targeting all of them at 1010.ģ) What manufacturer of 300BLK 220? I clocked Remington factory 220s at 1091-1167 with an average of 1126 from a 16" barrel, the same ammo went 869-971fps from a 9" barrel. Thank you.ġ) Have you Chronographed any of the mentioned ammo? Or are you basing everything on your ear and manufacturer claims?Ģ) I don't see a 60 gr. So, in both cases, a longer than normal barrel was used.Īny information from you guys will help. 223 sub was shot from a suppressed 20" barrel, 1:9 twist. So, maybe shooting 300 Blackout subs from a suppressed 16" barrel would cause the round to gain some velocity? Also, the. What the heck? Under what conditions will a subsonic round turn supersonic, and how can I fix this? Is it the longer barrel? Usually, 300 Blackout subs are shot from 10.5" barrels with suppressors.
#Reloading subsonic 223 ammo crack
223 subs, and they were very quiet, but I heard a sonic crack from both rounds. I just stepped out back and popped off a few of the. 223's since most of my targets are 50 yards or closer. 22LR), but I need something more powerful than. I shoot a lot of varmints at night (suppressed. 223 subsonic 60 grain rounds I purchased from Beck Ammunition. The same thing happened this morning with some.
22LR's, and there isn't a sonic crack, and there shouldn't be. The report from the muzzle is very quiet, but I'm still getting a sonic crack when the rounds are fired. I am shooting 300 Blackout subsonic rounds (220 grain) through a 16" barrel with a 7.5" suppressor. I have an issue with a couple different types of ammo.
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