![]() This would be a major draw for me if they did cycle and it would help me overlook the hefty prices for this ammo and pistol. Re: subsonic 223 that cycles I was making some 223 reduced loads a while back that would cycle my Ar15. Has anyone tried subsonics in the pistol and had them cycle reliably? Even being a blowback it is still designed to manage and cycle based on full power rounds and could have problems with a suppressor and lower powered rounds producing less force to overcome the springs? Apparently not content with good enough, they’re now working on barrels designed specifically for subsonic. 223 that’s said to cycle standard AR-15/M-16 actions without modification. ![]() I do like the idea of having 50 rounds in the PS90 where the first 10 or so are subs then 40 supers to follow it up or having 3 or 4 subs in a pistol with 17 full power ones waiting to go. 223 and 9mm projectiles, including 110 grain subsonic. My Colt upper keeps 80 grainers stable out to 75 yards, 100 yards they are definitely not stable any longer and groups have gone from cloverleaf to 3'. One needs at least a 1:7 twist for 80 grain and heavier subsonic loads. For folks contemplating an 80 grain subsonic load. Even a 240gr 300BLK moving the same speed is hit or miss getting through soft armor and it has over 4 times the energy. Subsonic 5.56mm can be 80 or more grains. ![]() 22LR size and power so any vest that can be defeated by a. To load subsonic (under 1100 fps) you will be hard pressed to get enough gas to cycle the action. I would seriously doubt any 55gr bullet going 1,000fps would get through soft armor. Has anyone tried running subs and supers through the same rifle without modifications and got reliable cycling? Thats 2 and a half times as much as a 22 long rifle 45 grain subsonic load. Its important to note that any firearm suppressed is still audible, especially when you get above the. to generate far more energy than the 223 Subsonic load, cycles actions on most common. 300 blk build not cycling with subsonic ammo : ar15. 223 Remington and 5.56x45mm caliber weapons platforms. Testing backs up this claim, with a mil-spec MIL-STD-1474D reading of 117dB when used in conjunction with the Gemtech M4-QD suppressor and an M4 Carbine. 223 Remington Subsonic round on the market. View QuoteInteresting take on the 5.7 and PS90. 223 SUBSONIC ATOMIC Ammunitions 223 subsonic is safe in both. 223 Ultra Stealth Match Subsonic is the quietest and accurate.
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