Re: .500 S+W Trouble
I wonder if the forcing cone was not machined properly or the chambers are not indexing properly with the forcing cone. You could be getting pieces of bullet jacket being shaved off as they enter the barrel. I could be way off base but just my uninformed 2 cents. I would definitely have it checked out, sounds dangerous to one's eyesight.
The critters have to win every time, I only have to win once.
NRA Life Member