Lee Precision 90781 Taper Crimp Die 38 Special 357 Magnum

The Lee Precision 90781 Taper Crimp Die delivers consistent bullet retention and proper case mouth preparation for 38 Special and 357 Magnum cartridges. This precision-machined die eliminates over-crimping issues that plague standard roll crimp dies when working with plated bullets or cast lead projectiles.

What Makes This Different

Unlike traditional roll crimp dies that can shave material from plated bullets, this taper crimp design applies uniform pressure around the entire case mouth circumference. The gradual taper maintains bullet integrity while providing sufficient grip to prevent bullet setback during feeding. This approach reduces bullet deformation by 40% compared to standard roll crimping methods, resulting in improved accuracy and consistent velocities.

Key Features

• Precision-ground steel construction with heat-treated surfaces for extended service life
• Compatible with 38 Special, 38 Special +P, and 357 Magnum cartridges
• Taper crimp design prevents bullet shaving and maintains projectile concentricity
• Standard 7/8-14 thread pattern fits all major reloading presses
• Adjustable crimp depth with positive lock ring system
• Works with jacketed, plated, cast lead, and polymer-coated bullets
• Includes detailed setup instructions and crimp gauge recommendations

Reloaders working with mixed bullet types will appreciate the consistent performance across different projectile materials. The taper crimp maintains proper case tension without the bullet distortion common with aggressive roll crimps. Competition shooters report improved accuracy consistency when switching from roll crimp to taper crimp dies, particularly with lighter 38 Special loads. The die handles high-volume production runs without dimensional drift, making it suitable for both casual reloaders and commercial operations.

Technical Specs

• Thread specification: 7/8-14 TPI standard reloading press thread
• Compatible calibers: 38 Special, 38 Special +P, 357 Magnum
• Construction: Heat-treated alloy steel with precision ground surfaces
• Die type: Taper crimp (non-roll crimp design)
• Includes: Lock ring and detailed setup instructions
• Manufacturer: Lee Precision, USA
• Model number: 90781

This taper crimp die addresses the specific challenges of reloading revolver cartridges where consistent bullet retention matters more than aggressive crimping. Professional reloaders choose Lee Precision dies for their dimensional accuracy and long-term reliability in high-volume applications.