Crimps the bullet in place more firmly than any other tool
Tests demonstrate that even bullets which have noCrimping groove will shoot more accurately
Lee 735X55 Factory Crimping Die crimps the bullet in place more firmly than any other tool. Tests demonstrate that even bullets which have no Crimping groove will shoot more accurately. A firm Crimping 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.