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Rifles, Reloading, Optics, Equipment
Suppressors
sub sonic 223 or 308 or 300 ar for pigs and coyotes
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<blockquote data-quote="Mach 1" data-source="post: 1462745" data-attributes="member: 104202"><p>I've been reloading 300 blk out rounds for a long time. Lately I've been using 195gr polymer coated cast bullets in front of h110. It's not the quietest powder but it consistent on velocity. As far as accuracy I can hit a pop can with every round at 75 yards. I have found the low ballistic coefficient cast lead bullets more accurate than the high ballistic coefficient A-MAX and Sierra matchking bullets. My barrel stabilizes the cast bullets just fine. But I did notice less accuracy out of 220 grain Sierra matchkings. I have read some people load them backwards but have never tried that. The 208 a max and 220 smk bullets were designed to be shot at supersonic velocities with a minimum of a 1 in 10t barrel and the barrel being at least 24inches long or so. It's no wonder they are inaccurate in a short barreled blackout going subsonic. As far as a 223 the powder ive found that works best for subsonic loads is Trail Boss. But it will never build enough pressure to cycle your AR action. Even if you went with a pistol length tube and bigger block I think you'd have problems. It just dose t build enough pressure. 7.62x39 will work but a blackout is about the only way to go.</p></blockquote><p></p>
[QUOTE="Mach 1, post: 1462745, member: 104202"] I've been reloading 300 blk out rounds for a long time. Lately I've been using 195gr polymer coated cast bullets in front of h110. It's not the quietest powder but it consistent on velocity. As far as accuracy I can hit a pop can with every round at 75 yards. I have found the low ballistic coefficient cast lead bullets more accurate than the high ballistic coefficient A-MAX and Sierra matchking bullets. My barrel stabilizes the cast bullets just fine. But I did notice less accuracy out of 220 grain Sierra matchkings. I have read some people load them backwards but have never tried that. The 208 a max and 220 smk bullets were designed to be shot at supersonic velocities with a minimum of a 1 in 10t barrel and the barrel being at least 24inches long or so. It's no wonder they are inaccurate in a short barreled blackout going subsonic. As far as a 223 the powder ive found that works best for subsonic loads is Trail Boss. But it will never build enough pressure to cycle your AR action. Even if you went with a pistol length tube and bigger block I think you'd have problems. It just dose t build enough pressure. 7.62x39 will work but a blackout is about the only way to go. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Suppressors
sub sonic 223 or 308 or 300 ar for pigs and coyotes
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