RCBS 3 Die Roll Crimp Set .44-40 Win RN Jacket

The 3-Die Roll Crimp Set is for loading straight-wall cartridges. Its steel Sizer Die sizes the case and de-primes. Note: Cases must be lubricated. The Expander Die expands the case to the proper diameter to accept the bullet, and it imparts case mouth flare/bell for bullet feeding. The Seater Die seats the bullet and roll crimps.Features a hardened steel Sizer Die (case lubrication required)Expander Die to properly expand case to accept bulletsRoll Crimp Seat Die to crimp case to bullet to eliminate bullet movementComes in a Green BoxAll RCBS dies are machined to exacting tolerances, hardened and finished to the highest standards in the industryMade in USA