marathag
Banned
Many years ago(1990?), when getting ammo in 30 Mauser was difficult, got a source of imported surplus Polish pistol ammo.If the .30 cal 'Imperial' round can be made hotter like the Takorev version of the .30 Mauser (aka 7.63 x 25mm) as used in the PPSH and TT-30 pistol then that would be a perfect 'Machine Carbine' round.
Promptly blew up a broomhandle with it, on the 5th or so round
More investigation of headstamps, it was Polish, and also was their hot loaded stuff for SMG usage.
Woops.