Lee Precision 90856 Fac Crmp Die 45-70GVT

The Lee Precision 45/70 Government or 450 Marlin Factory 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. This die is NOT compatible with 45/70 Hornady LEVERevolution cases.