Lee Precision 90733 Pacesetter 3-Die Set 7.7x58mm Japanese Arisaka

The Lee Precision 90733 Pacesetter 3-Die Set delivers precision reloading capabilities for the 7.7x58mm Japanese cartridge, enabling shooters to produce accurate ammunition for vintage Arisaka rifles. This complete die set provides everything needed to resize, expand, and seat bullets for this historical military cartridge.

What Makes This Different

Unlike generic die sets, the Lee Pacesetter series incorporates advanced metallurgy and precise tolerances specifically engineered for consistent case preparation. The hardened steel construction withstands repeated use while maintaining dimensional accuracy within 0.001 inches. Each die features polished internal surfaces that reduce case wear and extend brass life compared to rougher finishing found in economy alternatives.

Key Features

• Full-length sizing die with expander ball for consistent case dimensions
• Bullet seating die with built-in roll crimp for secure projectile retention
• Powder through expanding die enables efficient progressive reloading
• Heat-treated steel construction rated for 10,000+ reloading cycles
• Standard 7/8-14 threads fit Lee, RCBS, Hornady, and Dillon presses
• Includes shell holder and powder dipper for complete setup
• Factory load data sheet provides starting powder charges and bullet specifications

The 7.7x58mm Japanese cartridge requires specialized dies due to its unique case dimensions and rim configuration. This die set handles both military surplus brass and new Norma cases with equal precision. The sizing die removes firing pin impressions and restores proper headspace, while the seating die accommodates bullet weights from 150 to 180 grains. Competition shooters report consistent velocities within 15 fps using this die set with quality components.

Technical Specs

• Caliber: 7.7x58mm Japanese (7.7 Arisaka)
• Die count: 3-piece set (sizing, expanding, seating)
• Thread pitch: 7/8-14 TPI standard
• Material: Heat-treated alloy steel
• Finish: Black oxide coating
• Included accessories: Shell holder, powder dipper, instructions
• Compatible presses: All standard single-stage and progressive models
• Country of origin: United States

This die set addresses the challenge of finding quality reloading tools for obsolete military cartridges. Lee Precision's established manufacturing standards ensure consistent performance across thousands of rounds, making it the practical choice for Arisaka rifle owners seeking reliable ammunition production.