Same die have loaded many rounds, many in this pump. 2 splits. I think the starline is different issue, but I don't know.

As some of said, is it anything to do with lube in the pump? I lubed the bolt, don't recall ever doing that before. brass would have been tumbled, Since then I have cleaned brass with alcohol or contact cleaner.


exact same primers, same primer, same die same bullet for starline.

I said I checked barrel being tight and met with opposistion.