The rifle I'm reloading for has a 16" 1:7" twist barrel. I plan on buying some heavier bullets later to play with but I wanted to load some plinking rounds with the 55 grain bullets.
I started sizing cases last night before I trimmed them. The shoulders on some of them have dents in them. They didn't before. I'll clean the vent hole and use a little less lube on them and see if it still happens.
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