Cheddite primers, which those look like, "age harden" really fast....they act different in different guns......a normal deep strike usually appears as a light strike with old Cheddite primers.........punch them out, reload and test the gun with fresh U.S. made primers....should be fine......
Those are 2.5" Cheddite 16 hulls with what appears to be factory Cheddite primers that come with the new hulls.....I don't see any pressure signs or flatened primers, just hardened primers failing......dishing around the pins......use U.S. made primers........
Best,
