Lee's Reloading 90862 Carbide Factory Crimp Die for .40 S&W/10mm Automatic

Improve your cartridge reliability with the Lee Precision Factory Carbide crimp Die! A carbide sizer inside the Carbide Factory Crimp die post-sizes the cartridge while it is crimped so every round will positvely chamber freely with factory like dependability. The adjusting screw quickly and easily sets the desired amount of crimp. It is impossible to buckle the case as with a conventional bullet seating die. Trim length is not critical so this extra operation takes less time than it would if cases were trimmed and chamfered. Revolver dies roll crimp with no limit as to the amount. A perfect taper crimp is applied to auto-loader rounds. The crimper cannot be misadjusted to make a case mouth too small to properly head-space. A firm crimp is essential for dependable and accurate ammunition. It eliminates the problems of poor ignition of slow burning magnum powders.