Lee 90905 Factory Crimp Rifle Die 375 Winchester

The Lee 90905 Factory Crimp Rifle Die for 375 Winchester is a specialized reloading tool designed to finish your handloads with the consistency and reliability of factory ammunition. Built around a carbide sizer, this die performs dual duty—resizing your finished cartridges while applying a crimp in a single operation. The result is rounds that chamber as smoothly as off-the-shelf ammo, with no binding or resistance.

If you've spent time at the reloading bench perfecting loads for your 375 Winchester, you know that a proper crimp is what separates a round that feeds reliably from one that doesn't. This factory crimp die handles the job with authority. It's versatile enough to work with jacketed bullets across a range of specifications, and powerful enough to crimp even bullets lacking a cannelure—the knurled band many reloaders expect to see on a round designed to take a crimp.

Using the Lee Factory Crimp Die is straightforward: adjust the locking screw to set your desired crimp depth, then run your sized and primed brass through. Whether you're building ammunition for hunting, long-range shooting, or testing loads at the range, this die ensures every round meets the same standard you'd expect from a factory box.

Key Features

• Carbide sizer for durable, long-wearing performance across many reloading sessions
• Dual-function design: resizes and crimps in one stroke
• Works with jacketed bullets and bullets without cannelures
• Adjustable crimp depth via screw mechanism
• Produces ammunition that chambers as freely as factory loads

Specifications

Frequently Asked Questions

Can I use the Lee Factory Crimp Die on bullets without a cannelure?

Yes. The factory crimp die is powerful enough to apply a crimp to bullets that don't have a knurled cannelure. This gives you flexibility in your bullet selection and load development.

What does this die do differently than a standard crimp die?

The Lee Factory Crimp Die combines sizing and crimping in one operation using a carbide sizer. This ensures your finished rounds resize to factory specifications and receive a crimp simultaneously, resulting in ammunition that chambers as freely as commercial loads.

Do I need to run my brass through a sizer die before using this crimp die?

The product description provided does not include details on whether pre-sizing is required. Consult the included instructions or Lee Precision's technical documentation for your specific reloading sequence.