I have some in 9mm, 45 acp, 45 Colt, 38+P and 5.56 solid brass. The only thing I have shot is steel or water jugs. Never had one fail to go bang. FWIW. Their video of firing 10,000 rds through a new, straight from the box CZ P10C in one outing is what caused me to buy the pistol. Maybe the...