The Lee Precision .257 Weatherby Magnum Custom Factory Crimp Die (brand part no. 91225) is the final station for .257 Weatherby Magnum handloads, applying a firm crimp after the bullet is seated and post-sizing any case that is still out of spec. A carbide sizing ring inside the die only contacts a cartridge that is oversized from a heavy crimp or a slightly large bullet, squeezing it back down as it’s withdrawn so it chambers cleanly. Lee Precision designed this die to run as an add-on station after seating, not as a replacement for it, and it’s a popular finishing step for handloaders running precision rifle handloading through lever guns, pumps, or semi-autos that need a firm, consistent crimp.

Key Specifications

• Built for the .257 Weatherby Magnum cartridge, matching that case’s exact body and crimp geometry.
• A carbide sizing ring inside the die post-sizes any case that is still oversized after bullet seating, so finished rounds chamber correctly.
• Applies the crimp as a separate, final press station after seating rather than combining seating and crimping in one step.
• Works on top of an existing seating die rather than replacing it, adding one extra press stroke per round.
• A common finishing step for precision rifle handloading, where a firm, consistent crimp on feeding and recoil matters.

Frequently Asked Questions

Does this die seat the bullet? No. This factory crimp die is a finishing station used after seating; it crimps and post-sizes the loaded round.

Why would I add a factory crimp die to my setup? It resizes any cartridge left slightly oversized by seating or crimping and applies a firm, consistent crimp, which helps rounds feed and chamber reliably.

Is this die specific to .257 Weatherby Magnum? Yes, it is machined to match .257 Weatherby Magnum case dimensions and is not interchangeable with other cartridges.

Buy the Lee Precision .257 Weatherby Magnum Custom Factory Crimp Die

Order the Lee Precision .257 Weatherby Magnum Custom Factory Crimp Die from our Lubbock, Texas gun shop for fast shipping to your bench. Check out the rest of our reloading dies to build out a complete .257 Weatherby Magnum die set.