Lee Precision 90841 Factory Crimp Die 7mm Express 280 Rem

The Lee Precision 90841 Factory Crimp Die delivers consistent bullet seating and crimping for 7mm Express and 280 Remington cartridges. This precision reloading die eliminates bullet setback while maintaining proper case mouth tension for reliable feeding and improved accuracy.

What Makes This Different

Unlike standard taper crimp dies, the Lee Factory Crimp Die applies a collet-style crimp that mirrors factory ammunition specifications. The carbide expander ball ensures consistent case neck tension while the crimp sleeve provides uniform bullet retention. This dual-action design produces ammunition that feeds reliably in semi-automatic and bolt-action rifles while maintaining optimal ballistic performance.

Key Features

• Collet-style crimping system duplicates factory ammunition crimp specifications
• Carbide expander ball eliminates case neck variations and extends brass life
• Compatible with 7mm Express (.280 Remington) cartridges exclusively
• Standard 7/8-14 threading fits all major reloading presses
• Heat-treated steel construction withstands high-volume reloading sessions
• Includes detailed instructions and load data recommendations
• Works with bullets from 120 to 175 grains

Reloaders report improved consistency in overall cartridge length and enhanced feeding reliability in hunting rifles and precision shooting applications. The die maintains proper bullet alignment during the crimping process, reducing runout that can affect downrange accuracy. Field testing demonstrates reduced bullet pull variation compared to standard roll crimp methods, particularly beneficial for hunters using controlled expansion bullets.

Technical Specs

• Caliber: 7mm Express / .280 Remington
• Thread: 7/8-14 TPI standard
• Material: Heat-treated alloy steel with carbide expander
• Die Type: Factory Crimp Die (collet style)
• Compatible Bullet Weights: 120-175 grains
• Country of Origin: United States
• Manufacturer Part Number: 90841
• Includes: Die body, collet, expander ball, lock ring

This factory crimp die addresses the specific needs of 280 Remington shooters who demand ammunition reliability equal to factory loads. The precise engineering ensures consistent performance across different bullet styles and weights, making it essential equipment for serious handloaders.