LEE Factory Crimp Die 7.5mm Schmidt-Rubin + 7.5x55mm Swiss #90184

Lee 735X55Factory Crimp Die crimps the bullet in place more firmly than any other tool. Tests demonstrate that even bullets which have no crimp groove will shoot more accurately. A firm crimp improves accuracy because pressure must build to a higher level before the bullet begins to move. This higher start pressure insures a more uniform pressure curve and less velocity variation.