dmftoy1
Member
I know this has been hashed back and forth but I thought I'd share my experiences from yesterday. My next door neighbor was trying to dial in his AR (Bushmaster Varminteer) and had brought an assortment of ammo. He had no problems with XM193, Black Hills, Federal American Eagle and WWB, but in switching to loads from the local bulk loader he had some bullet setback. The setback was occurring in both the "new" ammunition (all components) and in the reloads. He had 60 grain a-max, 77 grain sierra's, and 68 grain SMK's. It happened in ALL of the loads from this guy. Seemed to be about every other round. I happened to catch a jam after he had been shooting for awhile and asked him to show me the round (one is pictured below) he said that he had been experiencing it pretty regularly with the rounds and had shot a bunch the day before. (I told him I would NOT shoot any more of these)
What do you guys think? Could this much bullet setback cause an overpressure and kaboom? I'm kicking myself for not asking him to chamber a round by dropping the bolt and then ejecting it . . .I suspect they were all setback.
What do you guys think? Could this much bullet setback cause an overpressure and kaboom? I'm kicking myself for not asking him to chamber a round by dropping the bolt and then ejecting it . . .I suspect they were all setback.