The RCBS MatchMaster Competition Full Length Bushing Die Set in 8x57mm Mauser (brand part no. 15908) brings match-grade case control to one of the world’s classic military and sporting cartridges. RCBS pairs a full-length bushing sizing die that controls neck tension with interchangeable neck bushings (sold separately) alongside a competition seating die whose oversized micrometer knob dials seating depth in true one-thousandth-inch increments. A titanium carbo-nitride expander reduces brass buildup and smooths case extraction, and each die body is case-hardened steel, precision-reamed and hand-polished. Among reloading dies, this MatchMaster set favors precision handloaders feeding accurized 8mm Mauser rifles.

Key Specifications

• The cartridge is 8x57mm Mauser.
• The set includes a full-length bushing sizing die and a competition seating die.
• Neck tension is controlled by interchangeable neck bushings, sold separately.
• The seating die’s oversized micrometer knob adjusts in one-thousandth-inch increments.
• A titanium carbo-nitride expander reduces brass buildup on extraction.
• Dies are case-hardened steel, precision-reamed and hand-polished.

Frequently Asked Questions

Are neck bushings included with this set? No, the sizing die uses interchangeable neck bushings that are sold separately, letting you match neck tension to your brass.

How precise is the seating adjustment? The micrometer-style knob is calibrated so one marked division moves seating depth one thousandth of an inch.

Buy the RCBS MatchMaster 8x57mm Mauser Die Set

Competition-grade neck tension and micrometer seating for a classic Mauser cartridge is exactly what this MatchMaster set delivers. Order it from our Lubbock, Texas gun shop for fast shipping.