Lee Case Length Gage and Shell Holder 7.7mm Japanese

The Lee Case Length Gage and Shell Holder 7.7mm Japanese is a precision reloading tool designed to ensure consistent case preparation for rifle ammunition assembly. Built from hardened steel and manufactured to SAAMI specifications, this two-piece set delivers the accuracy required for quality hand-loaded ammunition that performs reliably downrange.

The case length gage allows shooters to measure and trim brass to exact specifications, while simultaneously squaring the case mouth—a critical step that prevents feeding issues and improves seating consistency. The matched shell holder securely positions the case during trimming, preventing deflection and ensuring uniform results across your brass. This combination is essential for reloaders who prioritize precision, as inconsistent case length leads to pressure variations and reduced accuracy potential.

Reloaders working with 7.7x58mm Japanese rifles—including Arisaka Type 99 and similar military actions—depend on proper case preparation to maximize accuracy from these vintage platforms. The hardened steel construction withstands repeated use without wearing, making this tool a one-time investment for long-term reloading applications. Whether you're processing once-fired military surplus brass or new production cases, this Lee Precision set provides the repeatability necessary for sub-MOA performance.

Lee Precision offers case length gages and shell holders across a full range of popular calibers, making this 7.7mm Japanese model part of a comprehensive reloading system. Precision brass preparation is non-negotiable for serious hand-loaders—this tool set delivers the accuracy and durability required for consistent ammunition production.