The Neck/Shoulder Sizing Bushings are designed for Short Action Customs Modular Sizing Dies, specifically for the 6mm Dasher cartridge, with a .267" diameter.
These bushings provide precise sizing with improved internal geometry to reduce neck runout and enhance loaded cartridge concentricity.
Made from 17-4 H900 stainless steel, the bushings undergo the same heat treatment as Precision Resizing Dies, ensuring a smooth and slick finish.