Removing the crimp is an easy one-time method. I utilize a RCBS Trim Mate crimp remover that inserts on the hand Device and reams the primer pocket. Once which is accomplished the case is prepared for steady use. The key is figuring out navy brass. Plus the headstamp would be https://troyuusni.blogocial.com/indicators-on-reloading-9mm-ammo-you-should-know-59618196