Are you in the wrong forum? Should this be in auto pistols?
I've used the 7.62 X 25 in my CZ 52 and my Tokarev. No real malfs like stovepipes, double feeds, or failures to feed but very hard primers. 5 out of 50 in the CZ, and 4 out of 50 in the Tok took 2 strikes to fire. One of them in the Tok took 4 strikes!