9/5/2023 0 Comments Subsonic 223 thats cycles![]() 223/5.56 case to cause any pressure problems. I guarantee you can't load enough trailboss into a. 223, start with a HEAVIER powder charge and work DOWN to subsonic, not the other way around. Subsonic 5.56 is generally a bolt gun load since youll get fail-to-eject or short stroke cycles. I have found they give the most consistent ignition and velocities with Trailboss powder. 223 using pistol powders and extremely low chamber pressure. If he expects it to cycle a gas gun, not so much. Sub 223 and 308 drop like a rock anyways. This ammunition also serves as a reduced recoil round for those with physical disabilities and desire less felt recoil. Putting together a subsonic round is pretty easy. Re: subsonic 223 that cycles I was making some 223 reduced loads a while back that would cycle my Ar15. The fact that this subsonic ammo does not cycle in a semi-auto makes it the ultimate stealth round because keeping the bolt closed makes all the sound go through your suppressor. With a proper sound suppressor, this ammunition sounds very close to a pellet gun. ![]() Don’t waste your money on this ammo The clue the Atomic ammo gave me was they figured out how to get enough pressure at low velocities to cycle the bolt. From Hodgdon: Bullet: 55 gr Hornady full metal jackets Primer: Winchester Small Rifle primers Powder: 3.2 grains of Clays COAL: 2.2' Velocity: 1060 fps according to Hodgdon. ![]() I called Hodgdon, and sure enough, they had some suggestions. The Atomic sub ammo gave me around 1150 FPS from the 10.5 barrel and around 1500 FPS from the 16 barrel. The Accurate S1250 subsonic 223 loads have been discussed before, but I had not seen many other recipes. This ammunition is designed to be shot suppressed (Silencer) and truly is "Hollywood Quiet." It is engineered for optimal subsonic velocity using a 16" barrel, but shoots great through most 20" barrels as well. The ammo cycled and locked the bolt open in both the 10.5 and 16 barrels. This is the most deadly 55gr Subsonic ammunition on the market. Our 5.56mm Cycling Subsonic Ammo is to be used in our BECK DEFENSE CS UPPER or BECK DEFENSE CS RIFLE. 223 Subsonic round available for hunting or defense work.īeck Ammunition Silent Operator™ series is engineered to run at Subsonic Velocities (just below the speed of sound) and to be shot with a sound suppressor. The projectile is m anufactured by Maker Bullets on state of the art CNC equipment. The 55gr REX features a new advanced technology bullet that expands at subsonic velocity.
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