I doubt I've ever looked at the chamber area of one of my own guns, after a round of trap or skeet. I'm guessing Occam's Razor on this one. Anybody who thinks a bunch of gun geniuses are running around a typical shoot are badly mistaken, especially if alcohol is available. I also have a hard time believing a gun that would shoot forever at 8,000PSI would bulge at 10,000-12,000. It would take more than SAAMI spec to do the damage we are seeing, IMHO. I don't recall exactly the numbers, but, it seemed like Sherman Bell was waaay off the charts with what could even be stuffed into a 2 3/4" round in a typical reloader, before he had bulges in his testing.
I have a gun or two I would loan a guy I knew. They aren't Parker G grades. I think the only guns I ever borrowed were my Dad's. They live here, now.
I feel for the dealer. But, I'm not ready to condemn either shooter without knowing a lot more facts.


Best,
Ted