Lyman MSR Precision Die System 9mm Luger Reloading Dies Set

The Lyman 7690107 MSR Precision Die System delivers consistent, match-grade ammunition for 9mm Luger cartridges. This three-die system addresses the specific challenges of reloading straight-wall pistol cases with enhanced precision and reliability. Built for high-volume reloaders who demand consistent performance shot after shot.

What Makes This Different

Unlike standard die sets, the MSR Precision system incorporates Lyman's advanced case mouth expansion technology and precision-ground sizing dies. The system reduces case work-hardening by 40% compared to conventional dies while maintaining tighter tolerances. Each die features hardened steel construction with micro-polished surfaces that resist wear even after processing thousands of cases.

Key Features

• Three-die system: sizing die, expanding die, and bullet seating die with built-in crimper
• Precision-ground steel construction with micro-polished interior surfaces
• Advanced case mouth expansion reduces splitting and extends brass life
• Compatible with all standard 7/8-14 thread reloading presses
• Includes detailed loading data and setup instructions
• Hardened steel construction rated for over 10,000 rounds
• Tight tolerance specifications maintain consistent OAL within 0.002 inches

The MSR Precision Die System excels in competitive shooting applications where ammunition consistency directly impacts accuracy. Match shooters report improved group sizes and reduced fliers when switching from standard die sets. The enhanced case mouth expansion particularly benefits high-volume reloaders processing mixed brass headstamps. Weather-resistant finish prevents corrosion during storage in humid conditions.

Technical Specs

• Caliber: 9mm Luger (9x19mm Parabellum)
• Thread: Standard 7/8-14 TPI
• Material: Hardened tool steel with corrosion-resistant finish
• Die count: 3-piece set (sizing, expanding, seating/crimping)
• Compatible with: All standard single-stage and progressive presses
• Manufactured in: United States
• Model number: 7690107
• UPC: 011516501073

This die system represents a significant upgrade for reloaders seeking match-grade consistency without the expense of custom tooling. The precision manufacturing tolerances and advanced design features justify the investment for serious shooters. Stock levels fluctuate due to strong demand from competitive shooting communities.