I have a friend who is very very short on cash and he lives in a pretty bad neighborhood. He has 1 child and a girlfriend which he is caring for. I found a place where I can pick up a working CZ-52 in 7.65x25mm for about $100 which is just doable. I plan on replacing the firing pin and some internal parts with higher-quality steel and torture-testing it for reliability if the decision is made to go with this gun. My question is this: What do you think of the defensive capabilities of the 7.62x25mm round? It appears to be fairly potent. Can anyone recommend good defensive ammunition in this caliber?