RCBS 3-Die Steel Set Features The RCBS 3-Die Steel Set for .45-60 Win is designed specifically for loading straight-wall cartridges with a dependable roll crimp finish. The steel Sizer Die resizes fired cases back to proper dimensions while simultaneously removing the spent primer streamlining the reloading process. Because the case must be lubricated before sizing reloaders get consistent smooth operation without undue strain on the press. This straightforward three-step process makes the set approachable for reloaders working with classic straight-wall rifle cartridges. Following sizing the Expander Die opens the case mouth to the correct diameter for the bullet while adding a slight case mouth flare to aid in feeding the bullet into place. The Seater Die then seats the bullet to the proper depth and applies a secure roll crimp locking the bullet in place for reliable cycling and consistent ignition. Built from durable steel construction this set is designed to hold up to repeated use at the reloading bench. The RCBS 3-Die Steel Set is a solid choice for anyone loading .45-60 Win ammunition at home. RCBS 3-Die Steel Set Specifications Manufacturer: RCBS Model: 3-Die Steel Set Caliber: .45-60 Win Die Type: Rifle Set Sizer Expander Seater Available At: GrabAGun