I just built this AR in the last few weeks. It is a 24" heavy bull barrel AR 15 with a 1 and 8 twist. I put a plum Cary lower on it and basic A2 stock.
I was wondering if any of you know which round is better for a 24, the 69 grain or the 75 grain bullet?
you should try several weights and types it might like one type of 69gr better than another and so on.
i have been shooting my uncles shop built savage with 24" stainless steel fluted bull barrel.
it can put 3 77gr in a dime @ 100 but it can put 3 69gr laupas nearly in the same hole--
and this is with 1-9" twist--LOL
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