The RCBS Full Length Die Set for .270 Winchester is known in many reloading circles for their high-quality. Each Die Set includes a full length sizer die has an expander-decapping unit to remove the spent primer while expanding the case mouth. Vent holes prevent case damage caused by trapped air or excessive lubricant. The seater die includes a bullet seater plug and built-in roll or taper crimp as appropriate for the particular cartridge. Shellholders sold separately.