Removing the crimp is a simple one-time process. I use a RCBS Trim Mate crimp remover that inserts on a hand Instrument and reams the primer pocket. Once which is done the case is prepared for ongoing use. The main element is identifying military brass. And also the headstamp may https://trentonqdmwg.mybloglicious.com/57991890/not-known-facts-about-reloading-9mm-luger