Check the listing for details. Lee 90838 Factory Crimp Die 7/30 Waters New In Box #90838. Condition: New. Listed at 12.99 USD. The Lee Factory Crimp Die for the 7/30 Waters is designed to give reloaders the perfect crimp on each round of reloaded ammunition. The Factory Crimp Die crimps the bullet more firmly in place than any other die with more uniform pressure. The Factory Crimp Die features a collet that squeezes the case mouth into the crimping groove for a firm hold. This is the same type of crimp on factory ammo. It is nearly impossible to buckle the case when crimping when compared to a regular roll crimp die. Lee's testing has shown that using a Factory Crimp Die provides a more uniform pressure curve, increasing the accuracy of any bullet. Lee reloading equipment is the best value on the market today. Lee Dies are standard 7/8 x 14 thread and fit all the modern presses such as; Dillon, Hornady, Lee, Lyman, and RCBS.