I have two carbines. Both chrome, 1-9 and 1-7 twist.
They both shoot about the same with 55/62gr. I'll never be shooting 45gr but maybe 77gr though I doubt it. So I suppose if I had to pick one I'd chose 1-7, but for my current use twist rate don't matter to me. I'm not a precision paper puncher. Mostly shoot offhand at steel. Really, about the only time I shoot at paper is to zero an optic. With M855 and M193 they're both about 2-3moa shooters when I do use paper which is about what to expect from the ammo. Eh... whatever.
Last edited by ChattanoogaPhil; 04-30-2017 at 09:25 PM.
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