Lee Precision .357 Mag Steel Collet Style Factory Crimp Die - 90813

357 Magnum collet style crimp die. Incorporates a collet to apply a rifle type crimp to the case. Makes these very difficult to crimp cartridges a delight to reload. Bullets do not need a crimp groove, as the collet is so powerful it will form one. Carbide factory crimp die sizer sizes the cartridge while being crimped, so every round will positively chamber freely with factory like dependability. The adjusting screw quickly and easily sets the desired amount of crimp. It is impossible to buckle