The Neck/Shoulder Sizing Bushings are designed for Short Action Customs Modular Sizing Dies, allowing precise neck sizing and bump adjustment for cartridges.
They feature a new internal bushing geometry aimed at reducing neck runout and enhancing loaded cartridge concentricity.
Constructed from 17-4 H900 stainless steel with a heat treatment for durability, these bushings boast a smooth interior and slick exterior finish.