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Joined: Dec 2018
Posts: 1,001
Campfire Regular
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OP
Campfire Regular
Joined: Dec 2018
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I'm looking for load data for sub loads and 223 . 10-1/2 " pistol AR if that matters . It works great in my blackout , can't find any data for 223 ? HELP !
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Joined: Jun 2008
Posts: 488
Campfire Member
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Campfire Member
Joined: Jun 2008
Posts: 488 |
What weight bullet? What twist rate? Sierra has “normal” data with Reloder 7 but not subsonic. It seems a bit slow for sub use, are you expecting the gas system to function?
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Joined: Dec 2018
Posts: 1,001
Campfire Regular
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Campfire Regular
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My 300bo does cycle with 11 grains and a can , but not without . Was hoping to get my 556 to do the same . 1-7 twist . 55- 77 great bullets.
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Joined: Dec 2018
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Campfire Regular
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Joined: Sep 2001
Posts: 19,096 Likes: 5
Campfire Ranger
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Campfire Ranger
Joined: Sep 2001
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It's gonna be tough to get the 223 to subsonic while still having enough port pressure to run the action. Another option is a CMMG 22 Rimfire adaptor. My 1/7 10.5" did reasonably well with 40gr Federal Target, and Aguila 60gr subsonic. Didn't like CCI Velocitors.
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Joined: Apr 2004
Posts: 42,909 Likes: 11
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2004
Posts: 42,909 Likes: 11 |
can't speak for an AR, as I am a bolt guy....
but around 10 grains in a bolt gun will work with RL 7
seems like a 221 Fireball would be a better choice if ya were doing a new barrel
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
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