Redding Competition Bushing Neck Die Set includes a Competition Bushing Neck Sizing Die, a Body Die, and a Competition Bullet Seater. Neck Sizing Die and Seater feature micrometer adjustments. Bushings and Shellholder sold separately. Competition Bushing Neck Die - With this die, the cartridge case is completely supported and aligned with the sizing bushing before the sizing process begins. As the sizing process starts, the cartridge case remains supported in the tightly chambered, sliding sleeve as it moves upward while the resizing bushing self-centers on the case neck. The decapping rod is maintained in precise alignment by using the internal parts of the die as a linear sup Mfg: Redding