The Redding 243 Ackley Improved Bushing Neck Die Set includes a Competition Bushing Neck Sizing Die, a Body Die, and a Competition Bullet Seater, with micrometer adjustments for precision.
The Neck Sizing Die supports and aligns the case with the bushing before sizing, while the Body Die resizes the case body and bumps the shoulder without affecting the neck.
The Competition Bullet Seater offers extremely tight tolerances due to the floating seating stem system, ensuring precise bullet seating with its "float" capability.