1. 7mm Mauser. To me the perfect round. Plenty powerful, accurate, and not so much recoil as to make it a chore to shoot. Only thing I hate is it's fall from popularity making it hard to find. End up ordering on line, and having less choices. Really wish this one had stood the test of time better. Makes me want to get into reloading. It's the perfect cartridge. No wonder so many others are based off it.