Lee Precision .416 Rigby Custom Factory Crimp Die

The Lee Precision .416 Rigby Custom Factory Crimp Die is a specialized reloading tool designed to improve accuracy and consistency for handloaders working with large magnum rifle cartridges. Unlike standard seating dies that merely hold a bullet in place, this crimp die uses a collet mechanism to squeeze the case mouth firmly into the bullet's crimp groove, creating a secure mechanical lock that resists bullet setback during firing. This matters: a loose bullet can creep forward under recoil, changing case capacity and chamber pressure—and consistency is everything in precision shooting.

The crimp force this die delivers builds higher initial pressure before the bullet begins to move, which translates to a more uniform pressure curve from shot to shot and less velocity variation across your string. That stability is especially valuable in magnum rounds like the .416 Rigby, where components are expensive and performance expectations are high. Tests show that even bullets without a dedicated crimp groove will shoot more accurately when crimped by this die—a testament to the collet design's holding power.

Installation is straightforward: the die threads into any 7/8"-14 reloading press (the industry standard for most single-stage and turret presses). A shellholder is required but not included, so confirm you have one on hand for your .416 Rigby cases. This is a no-nonsense tool built to the Lee standard—simple, reliable, and effective at one job: keeping your bullets where you put them.

Key Features

• Collet-style crimping mechanism for firm, consistent bullet grip
• Improves accuracy by creating uniform pressure buildup and reducing velocity variation
• Works with standard and non-grooved bullets
• Compatible with all 7/8"-14 press designs (standard single-stage and turret presses)
• Purpose-built for .416 Rigby precision handloading

Specifications

Frequently Asked Questions

What press will this crimp die fit?

The Lee .416 Rigby crimp die threads into any reloading press with a standard 7/8"-14 opening, which covers most single-stage and turret presses on the market. Check your press manual to confirm it uses the standard 7/8"-14 thread.

Do I need a shellholder?

Yes, a shellholder is required to operate this die. It is not included with the die, so you'll need to source one separately for .416 Rigby cases if you don't already have one.

Will this crimp die work with bullets that don't have a crimp groove?

Yes. Testing shows that even standard bullets without a dedicated crimp groove will shoot more accurately when crimped with this die, thanks to the firm collet squeeze on the case mouth.

How does this improve accuracy?

A firm crimp prevents the bullet from moving under recoil, which ensures pressure builds to a consistent level before the bullet begins to move. This more uniform pressure curve reduces shot-to-shot velocity variation, a key factor in precision rifle shooting.