Lee 30/06 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.
LEE 90824 FACTORY CRIMP DIE 30-06 SPRINGFIELD
Posted by Ken Reimer on Apr 12th 2021
These are a great die to have, I have them for all my rifle cartridges.