The RCBS 3-Die Taper Crimp Set for 360 Buckhammer is a high-quality reloading die set designed to deliver reliable and consistent results. This set includes a Sizer Die with Decapping Unit, an Expander Die for expanding and belling case mouths, and a Seater Die with a crimp for precise bullet seating. Unlike carbide dies, this set requires cases to be lubed prior to sizing. It comes with a durable plastic storage box and is backed by RCBS’s Lifetime Guarantee. Shellholders are sold separately.