RCBS MatchMaster Competition 300 Remington Ultra Magnum Bushing Full Length Sizing, Micrometer Bullet Seating 2 Die Set

Overview

The RCBS MatchMaster Competition 2-Die Set for .300 Remington Ultra Magnum (RUM) is designed to provide precision handloaders with exact control over case dimensions and bullet seating. Crafted from case-hardened steel and threaded for standard 7/8"-14 presses, the set includes a full-length sizing die and a micrometer bullet seating die. The sizing die uses interchangeable neck bushings to customize neck tension while minimizing brass fatigue, paired with a titanium carbo-nitride expander for smooth case extraction. The seating die features an exclusive loading window with a bullet-retaining system and a free-floating, self-centering micrometer seating stem to ensure maximum concentricity and repeatable accuracy.

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