Dittoes on the welcome (great screen name, bud!)
I'd lean to the to-light load side of the discussion - especially as you've fired other loads without a problem. I'd suspect -as you did- that OWS loaded them light to be safe in some of the creaky old rifles still around for that chambering.
Reload them in the usual way, and I'd bet that even start-level loads fix the problem.
|