Getting rid of the crimp is an easy one-time course of action. I make use of a RCBS Trim Mate crimp remover that inserts on the hand Instrument and reams the primer pocket. Once that's done the case is ready for steady use. The real key is identifying navy brass. https://martinaludl.digiblogbox.com/60831596/5-tips-about-9mm-brass-you-can-use-today