Just started using Remington 9 1/2 primers in my .300 WSM
and I cant seat them flush or below. They protrude out just enough that it makes it difficult to close the bolt. Upon ejection of an unfired primed case there is a clear scuff on the primer from where the bolt has rubbed during rotation.
How can I fix this?
I was thinking of getting a primer pocket uniforming tool but I have noticed that the anvils protrude from the cup, when compared to a winchester primer which anvil is almost flush is the primer the problem?
Btw, using winchester once fired brass.