What causes a kB!?
Catastrophic failures may be caused by a variety of problems, but in general a Glock kB! is as a result of a case failure. The case failure occurs when pressure inside the cartridge increases to the point that it cannot be contained by the case and the material of the case fails, allowing hot gases to escape from the ruptured case web at damagingly high velocities. The resulting uncontained forces can blow the magazine out of the gun, emulsify the locking block, cause the tip of the trigger to be snipped off, ruin the trigger bar, rupture the barrel, peel the forward edge of the slide at the ejection port up, and do other nasty things. In general, Glocks tend to contain case failures fairly well, but under some circumstances they can cause injury as well as damage to one’s gun. At least one LEO has been injured in a kB! involving a Glock 21 and a Winchester factory overcharge. Additionally, there is some evidence of there being another cause of a kB!… a barrel failure caused by impro
