Do kB!s occur in other guns or just Glocks?
kB!s do, of course, occur in other guns, but no one appears to be keeping accurate statistics for most of them. Many 1911-style handguns have partially unsupported case mouths, and numerous case separations have occurred in these guns. Early .38 Super barrels were particularly susceptible. Gunwriter Frank James has documented a number of kB!s in HK USP .40 pistols, which do have fully supported chambers.