1:7 twist

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    AR15 break-in procedures? 55gr out 1/7 SS barrel ok?

    Hello guys & gals. Just got my 18” Stainless Steel upper from PSA. All I have at the moment is some 55gr FMJ Wolf I got in bulk a year or so back. I was just wondering if there’s anybody out there of the mindset, “weeeeeell... since it IS Stainless Steel, 1/7 twist, the first couple hundred...
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