Lee Precision 90817 Factory Crimp Die 223 Remington Reloading

The Lee Precision 90817 Factory Crimp Die delivers consistent bullet seating depth and reliable case mouth crimping for 223 Remington cartridges. This precision reloading tool ensures uniform ammunition performance by applying controlled crimping pressure that matches factory specifications.

What Makes This Different

Unlike standard roll crimp dies that can buckle thin-walled rifle cases, this factory crimp die uses Lee's collet-style crimping system. The design applies radial pressure around the entire case mouth simultaneously, preventing case deformation while maintaining consistent neck tension. This approach extends brass life by up to 30% compared to traditional crimping methods.

Key Features

• Collet-style crimping prevents case mouth deformation and splitting
• Hardened steel construction with precision-machined threads
• Standard 7/8-14 thread pattern fits most single-stage and turret presses
• Includes detailed instructions and load data recommendations
• Compatible with all 223 Remington and 5.56x45mm NATO brass types
• Knurled lock ring allows repeatable depth adjustment
• Post-sizing feature ensures proper cartridge overall length

This die excels in high-volume reloading scenarios where consistency matters most. Competition shooters rely on the uniform neck tension for shot-to-shot velocity consistency, while tactical reloaders appreciate the extended brass life during rapid ammunition production. The crimping action works effectively with both plated and jacketed bullets without damaging bullet surfaces or affecting concentricity.

Technical Specs

• Caliber: 223 Remington/5.56x45mm NATO
• Thread: Standard 7/8-14 TPI
• Material: Heat-treated alloy steel
• Overall length: 3.2 inches
• Die body diameter: 1.25 inches
• Includes lock ring and detailed instructions
• Made in USA with lifetime warranty
• Compatible with RCBS, Hornady, Lyman, and Dillon presses

The Lee Factory Crimp Die represents proven engineering that addresses common reloading challenges through practical design solutions. Professional reloaders choose this die when ammunition consistency and brass longevity take priority over speed alone.