Lee Precision 90843 Factory Crimp Die 30-40 Krag

The Lee Precision Factory Crimp Die for 30-40 Krag gives you a way to finish reloaded rifle ammunition that chambers and shoots like factory loads. Built around a carbide sizing element, this 30-40 Krag crimp die performs two jobs in one pass: it resizes the case neck while applying a firm crimp to hold the bullet securely in place. The result is rounds that feed smoothly into your rifle's chamber without the binding or inconsistency that loose or poorly crimped bullets can cause.

Reloaders working with the 30-40 Krag—whether you're handloading for a Trapdoor Springfield, a modern reproduction, or a custom build—will appreciate having a dedicated crimp die tuned to this classic cartridge. The carbide sizer is durable and requires no lubrication, which speeds up your workflow and keeps your dies cleaner. The design works across a range of bullet styles, jacketed or otherwise, and even handles bullets without a cannelure; you simply adjust the crimp screw to set the pressure that works best for your load.

This is a straightforward, no-fuss tool that fits into a standard reloading press. If you're serious about ammunition consistency and reliable feeding in your 30-40 rifles, a factory-style crimp die is a smart addition to your die set.

Key Features

• Carbide sizer post-sizes cases while crimping in a single stroke
• Produces ammunition that chambers freely, mimicking factory specifications
• Adjustable crimp screw for fine-tuning crimp pressure
• Works with jacketed and non-cannelured bullets
• No lubrication required for carbide sizing element
• Sized specifically for 30-40 Krag cartridges

Specifications

Frequently Asked Questions

Will this die work in a standard single-stage reloading press?

Yes. The Lee Factory Crimp Die for 30-40 Krag is designed to fit into a standard reloading press just like any other die.

Can I use this crimp die on bullets without a cannelure?

Yes. The factory crimp die is powerful enough to apply a firm crimp to bullets that do not have a cannelure, so you're not limited to cannelured projectiles.

What makes a factory crimp die different from a standard seating die?

A factory crimp die combines sizing and crimping in one operation, producing ammunition that chambers as smoothly as factory ammunition. Standard seating dies seat the bullet but do not crimp. This die's carbide sizer also resizes the case neck while crimping, ensuring uniform fit and feed.

Do I need to lube cases before using the carbide sizer?

No. The carbide sizer does not require case lube, which saves time and keeps your dies cleaner during the reloading process.