Lee Precision 7mm Rem Mag/7x64 Brenneke Steel Factory Crimp Die - 90821

Lee Factory Crimp Die crimps your bullets in place the same as factory ammo. A collet gently, but firmly squeezes the very end of the case into the crimping groove, exactly the same as factory ammo. Lee 7MM Rem Mag / 7x64 Brenneke 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 begin