01-19-2014, 12:57 PM
NugginFutz Wrote:.1325" is within tolerances (-.003" IIRC), but doesn't really answer the question. If I was one of the recent recipients of these AR Stoner barrels, I'd try another bolt (one at .135"), to see if that allows the factory ammunition to chamber correctly.
I have tried bolts that are .135, they work fine. I thought the same thing, a shallow bolt face and a tight chamber may be causing the problems for those who can't chamber rounds, or have them being jammed into the rifling.