Lee Factory Crimp Die .30M1 #90421

Lee Factory Crimp Die .30M1 #90421

Lee Factory Crimp Die .30M1 #90421. This Factory Die incorporates a collet to apply a rifle type crimp to the case, which 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.