RCBS 40 Smith & Wesson/10mm Taper Crimp Seater Die

40 Smith & Wesson/10mm Taper Crimp Seater Die by RCBS RELOADING PRODUCTSTaper crimp seater die only. The crimping feature is machined into the die body and die must be moved up or down to obtain proper crimp. See included instructions for further information.