Lee Precision 90782 Taper Crimp Die 40 S&W 10mm Auto Reloading

The Lee Precision 90782 Taper Crimp Die delivers precise bullet seating and consistent case mouth crimping for 40 S&W and 10mm Auto cartridges. This specialized die eliminates case mouth flare while maintaining proper bullet tension for reliable feeding in semi-automatic pistols.

What Makes This Different

Unlike standard roll crimp dies that can buckle thin-walled pistol cases, this taper crimp design gradually reduces case mouth diameter without folding the brass. The precision-machined steel construction maintains consistent crimp pressure across thousands of rounds. Internal dimensions match SAAMI specifications for both 40 S&W and 10mm Auto, ensuring proper headspace and chamber fit.

Key Features

• Taper crimp design prevents case buckling on thin-walled pistol brass
• Precision-ground steel construction with heat-treated surfaces
• Compatible with both 40 S&W and 10mm Auto cartridges
• Standard 7/8-14 thread fits all major reloading presses
• Includes lock ring for consistent die positioning
• Maintains SAAMI-spec case mouth diameter for reliable feeding
• Eliminates case mouth flare while preserving bullet tension

This die produces ammunition that feeds reliably in semi-automatic pistols by creating the proper case mouth taper required for smooth chambering. Competition shooters benefit from consistent bullet seating depth and uniform case preparation. The controlled crimp pressure prevents over-crimping that can affect accuracy while ensuring adequate bullet retention for defensive loads.

Technical Specs

• Caliber: 40 S&W / 10mm Auto
• Thread: 7/8-14 TPI standard
• Material: Heat-treated alloy steel
• Finish: Black oxide coating
• Includes: Die body and lock ring
• Manufacturer: Lee Precision
• Model: 90782
• Country of Origin: USA

Reloaders who demand consistent ammunition performance choose this die for its ability to produce factory-quality crimps without the guesswork. The robust construction handles high-volume loading sessions while maintaining dimensional accuracy that translates to improved feeding reliability and consistent ballistic performance.