RE: reloading 7.62 X 39
the price in new brass will kill the idea alone, I had the same idea but then decided to just reload it for specialty and hunting rounds. once fired brass will be slim to none to find since everyone shoots the non-reloadable steel cased russian stuff anyway. but a package of winchester 100 pieces will run ya around 30 bucks and the remington stuff will run ya around 28 bucks also keep in mind that remington brass uses small rifle primers and winchester uses large rifle primers.