gvjm
Well-Known Member
So my 223 H-Bar heavy barrel AR stopped grouping. Once a under half inch gun now it's throwing 1 1/2" to 2" groups. This is a prairie dog gun with close to 10000 rds through it, all hot loads. But just were does the barrel burn? I was under the impression it starts at the throat but I was told that it can also be at the crown. If true can I cut the barrel down and recrown it? Does that even make sense?