M72 - Generally ALL military surplus ammo have crimped primers. M80 ball ammo is definately milsurp and is definately crimped. Reaming is not the problem - you may have to ream, and you might not. You'll know when you seat the first primer. But first you have to deprime. This is where you may have problems. If you notice an excessive amount of force is needed to deprime, stop. I broke two decapping pins trying to deprime PPV .223 fired cases that I bought cheap - $5/100. On some of them the primers came out, it was the one that that wouldn't that broke the pin. I even ordered two special hardened steel manual decapping pins which are used with a hammer, and not the press. I broke both of those also. Being a .223 caliber, the replacement pin was on backorder for 2 months - that was 2 months that I couldn't reload! 308 (7.62 x 51) dies are just as difficult to get these days - I wouldn't take the chance on reloading those cases.
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Last edited by RL357Mag; 07-18-2009 at 03:19 AM.