I had one go off on me in an old Ç-H press. A small piece of metal about the size of #12 shot had gotten in the primer cup somehow. It was spooky and you can bet to this day I make sure the primer cup is clean before I start.
Yea,I found that I to had a small shaving of a casing in the primer cup, and I did slow down on my loading now, I was doing the second set of one hundred loads and I just wanted to get done with them.
