The Redding Type S Match Bushing Full Die Set contains a Type S Bushing Full Sizing Die and a Compeition Seating Die. The Type S Bushing Full Die allows full length resizing while maintaining exact control of the case neck. Interchangeable bushings allow you to determine your own level of sizing and neck tension. The Competition Bullet Seating Die features a micrometer calibrated in .001" increments and floating seating stem system which help eliminate concentricity problems. Mfg: Redding