223 that’s said to cycle standard AR-15/M-16 actions without modification. It is intended ONLY for barrels up to 14½".it occasionally sticks in the barrel of a 16" carbine. 223 and 9mm projectiles, including 110 grain subsonic. This uses the same 100grn bullet but uses 8grns of powder and a small foam filler. Powder (25grns) looks like Vihavouri.ĮS also produce a round that will not cycle the action- different folks like different things.
#SUPPRESSED SUBSONIC 223 FULL#
Accuracy is adequate for it's intended mission out to 100m or so.īullet is filled with Tungsten carbide- so not cheep. If you are zero’d at 100 yards with normal full power supersonic 223 or 5.56 ammo, your point of impact (POI) with the subs will be about 9-12 low at 100 yards. Has cycled reliably in all the rifles I have tried it in- 1960's vintage M16, Current M4, HK 416 and ruger Mini 14.īullet (on the new stuff) weighs 100grns (old was 127grn) which is marginal on stability. The supersonic has more energy than a 5.56 round to boot. 223 rounds didn’t work as well as one would hope. Extreme Shock Prez Jeff Mullins tells TTAG that the previous military-spec 127 grain ASP. The average unsuppressed sound levels for the boltaction 7.62 3 51 mm/308 caliber rifle at the. The average suppressed levels were 137.4 dB and 134.2 dB, respectively (difference of 26.6 dB and 29.8 dB, respectively). If you are really interested in subsonic ammo go with a 300 blackout upper as this cartridge has been specifically designed for subsonic applications. 223 100 grain ASP (Advanced Subsonic Product) round specifically designed for civilian AR-15 modern sporting home defense assault rifles with suppressors. 223 caliber semiautomatic rifle at the military standard recording distance was 164 dB and 155 dB at the shooter’s ear. Out of 16" barrels like our test HK 416's.it is often just supersonic (1180fps) but a few civi spec 16 barrels it stays just below the speed of sound. It is unstable and can cause baffle strikes. It is designed to be subsonic in a mil spec 14½" barrel- it is. It works as advertised within a narrow window.
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