I reload for a number of calibers, rifle and handgun, and mostly use range brass, except for some dedicated .45acp for my 625 and a few dedicated for .357.
Of the thousands of cases in various stages of reloading, I have probably close to 100 different headstamps from many different countries, maybe more. They all work just fine, except for A-MERC cases which I toss when I find them. Otherwise no preference. I like them all.
If you want to shoot...shoot...don't talk! Tuco
USAF Munitions 1969-1992