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Mfg Item #: 90817
The Lee Precision .223 Remington Factory Crimp Die crimps the bullet in place more firmly than any other tool. It works with .223 Remington and .223 Ackley Improved. 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.