woodnut
Well-Known Member
Recently, I had an AR10 rechambered by a fine smith from 6x47Lapua to 6 Creedmoor. Went to test and zero it and two factory rounds had their primers blown out. Inspecting the primers showed no other pressure sign, but was black round it and the pocket was all black. Only two out of maybe 6 rounds. Other fired cases showed no pressure signs. Rifle operated normally.
I'm hoping ammo was at fault. It was Hornady Black, and I've never had anything like this to happen b4. But what do you think could have caused it?
I'm hoping ammo was at fault. It was Hornady Black, and I've never had anything like this to happen b4. But what do you think could have caused it?