The 8×63mm patron m/32 was a bottlenecked centerfire cartridge with a slightly (mm ( in)) rebated rim for Swedish heavy and medium machine guns. It was used from 1932 to the finalization of the rechambering process of these machine guns to 7.62×51mm NATO in 1975. The 8x63mm cartridge was used in the following machine guns: * Ksp m/22 * Ksp m/14-29 * Ksp m/36 * Ksp m/39 * Ksp m/42