The 7.92 x 33 Kurz was the first actual assault cartridge for the first actual assault rifle. It was developed by the Germans for the new MKB 42 assault rifle. Tested in combat against the Russians (Russians make such good testing media) in 1942. The rifle itself went through several modifications but the cartridge stayed the same, which shows they got it right the first time. As you can see the bullet is 8mm and that makes it a shortened version of the 8 x 57 round. (simplifies logistics when you have all those 8mm bullets in the pipeline) Never made for a commercial rifle it was purely military. The Russians (herein called the targets) were suitably impressed with the 'holeness' of the cartridge that they copied it for their own version of an assault rifle. (we know now where the 7.62 x 39mm came from).
For the record the 7.92 x 33 is less powerful than our 30-30 cartridge and not suitable for anything larger than small deer. The ammunition was steel cased and berdan primed as no one ever considered reloading in the middle of a war.
But the more I look at the little thing, the more it looks like some of the short magnums that they have come up with. I wonder if you could take a 8 x 57 case and blow it out and shorten it and make a nice little shooter for a T/C Contender. Or maybe a 7 x 57 case and shorten it and make a dandy little round with better velocity than the heavier 8mm bullet. And with that round you could put it in a "93" or "95" Mauser. Hummmm
Sarge the thinker