Lee Factory Crimp Die .38-40 Winchester

Lee Factory Crimp Die for .38-40 Winchester

The Lee Factory Crimp Die represents a straightforward approach to one of reloading's most critical operations: the crimp.

Design and Function

This die features a carbide sizer that post-sizes your cartridges while simultaneously applying a firm crimp. The dual function ensures that your ammunition meets factory specifications for both dimensional consistency and bullet retention.

Why Crimping Matters

A proper crimp serves multiple purposes:

• Improved Accuracy: A firm crimp holds the bullet in place more securely than standard seating alone, reducing bullet movement during firing
• Uniform Pressure: Consistent crimping creates a more uniform pressure curve throughout the firing sequence
• Reduced Velocity Variation: Tighter bullet seating translates to more consistent velocities from round to round
• Enhanced Reliability: Proper crimping prevents bullet setback in magazine-fed firearms

Practical Application

The .38-40 Winchester, a classic cartridge with a devoted following, demands attention to detail. This die ensures your handloads perform like factory ammunition—or better. Whether you're loading for a Winchester 1873 rifle or a period-correct revolver, this tool delivers the results serious shooters expect.

Simple, effective, and built to last.