The CZ 52 in the 762 x 25 is one really hot round , Its close to a 30 Mouser . Some people say it is so hot it only punches a hole instead of taking down an Attacker.
Our guys who got shot by it in Viet Nam say two different reports ,either it didn't take me out but hurt like hell ,or it shattered a bone so badly it had to be replaced with a proteases. The true story on its use in combat is in WW2 against the Nazis in Pistols and the PSSH ,SMG . There it was very effective , and was 100 times better than the 9mm. The new Wolf hollow points allow this round to act more like a 357 , in the 92 gr JHP rounds the effect is respected , approaching a 357 ,but they are loaded down because the Caliber could be used in some guns that are old and war models not built real well.
Some guys are reloading 30cal carbine bullets in hot loads even exceeding a factory 357 ,and using them in the 52 .
American manufactures of the 1911 ,and Glock are due to release pistols in this round some time soon. Its a safe bet that this round and the .40SW have all but pushed the 9mm into a CCW class on a smaller frame pistol.
I would still grab a 45ACP if i needed something ,but i would grab a pistol in this caliber before i would a 9mm.