Once had a case head separation during a stage at USPSA Production Nationals. It blew the extractor and mag out and put a few pieces of brass in my left thumb. Gave me a bit of a flinch with my backup Glock the rest of the match. Not that I was doing that great to begin with. If it's not factory or something I load and case check I'm not shooting it.I shoot all my range pickups.
save the good stuff