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case neck scratches
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02-11-2019, 12:36 AM
just finished my ar build in 6.5 grendel. this is my first build and first ar15. i ran a box of hornady black eld through it just to test. after getting it sighted in i was getting groups the size of a nickle from 100 yards. but i noticed my case shoulders were getting scratched deeply and i had brass on the bolt face? being new to ar's what causes this?
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case neck scratches - by caleb90 - 02-11-2019, 12:36 AM
case neck scratches - by caleb90 - 02-11-2019, 12:43 AM
case neck scratches - by Cornbread - 02-11-2019, 02:04 AM
case neck scratches - by snarkscarbine - 02-11-2019, 09:14 PM
case neck scratches - by Djgrendel - 02-12-2019, 03:51 AM
case neck scratches - by AR15gunner - 02-12-2019, 04:12 AM
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