I experienced my first ever case blow out today. See lousy phone cam picture below. Pulled the trigger on my G34 and the round went off as expected except for the flames that shot out to the left and right of slide at about the ejection port and the fact that my magazine shot out of the magwell. The case did not eject and left the gun slightly out of battery. After clearing the weapon I was able to field strip and inspect. Fortunately the G34 (almost brand new) and magazine sustained no damage. I was able to finish off shooting the 25 rounds I had left without any further incidents. BTW, the round is a reload, not factory fresh. I have run at least 3000 rounds reloads from the same source without problem between my two Glocks up until this one freak.