I was shooting my Browning .40 S&W over the chrono last week and had a case failure. The head of the case was pulled from the case walls and I found it on the ground. The slide cycled and stripped a new round from the magazine but it obviously couldn't chamber. There wasn't any damage to the Browning and I was able to keep shooting. I was shooting 180 Gr Laser Cast and 5.5 Gr. Unique. What's interesting is we were shooting again on Sat and the same thing happened in a Beretta 96FS only this time the tip of the extractor was broken and lodged between the extractor and the slide. Same load as before. The brass was PMC that I had picked up at a gun show in the Expo Center. I guess I'm looking for some input on the PMC brass. Has anybody encountered this issue?