Lee Precision 280 Remington Rifle Precision Micrometer Bullet Seating Die

The Lee Precision 280 Remington rifle precision micrometer bullet seating die is built for reloaders who want repeatable, consistent seating depth without the cost of premium equipment. If you're loading 280 Remington rounds and need tight control over bullet placement, this micrometer seating die delivers the precision you need through a straightforward, proven design. The micrometer adjustment system reads just like a depth micrometer—laser-engraved divisions represent one-thousandth of an inch increments—so you dial in your exact seating depth and reproduce it shot after shot.

The die's floating bullet guide is the key to its accuracy. By holding the case and bullet in perfect alignment during seating, it minimizes bullet runout—the small lateral wobble that can hurt accuracy downrange. The guide is reversible too: unthread it, flip it, and reinstall it to enable simultaneous seating and crimping without swapping dies, a feature unique to Lee's lineup. The machined and burnished seating stem is designed to seat virtually any bullet profile cleanly, without marking or deformation.

When you clamp this die to your press with the body contacting the shell holder, the dead-length seating method ensures every round sits at the same depth relative to your case—no variation from round to round. That consistency is what separates good handloads from great ones, and it's what makes this die a workhorse for serious 280 Remington reloaders who refuse to compromise on uniformity.

Key Features

• Precision micrometer adjustment with laser-engraved, easy-to-read graduations in 0.001" increments
• Dead-length seating via body-to-shell-holder contact for uniform seating depth
• Floating bullet guide minimizes bullet runout and holds perfect alignment
• Reversible guide for simultaneous seating and crimping without die changes
• Machined and burnished seating stem accommodates nearly all bullet profiles without marking
• Designed for 280 Remington cartridges

Specifications

Frequently Asked Questions

What is a micrometer bullet seating die and how does it improve accuracy?

A micrometer seating die lets you dial in your exact bullet seating depth in precise increments (in this case, 0.001 inch) and repeat that depth on every round. Consistent seating depth reduces runout and variation, which translates to tighter groups and more reliable ballistics downrange. The Lee's floating guide further reduces runout by keeping the bullet and case perfectly aligned during seating.

Can this die seat different bullet profiles, or just specific designs?

The machined and burnished seating stem is designed to seat nearly any bullet point style without damaging or marking the bullet. This flexibility is useful if you load different bullet weights or brands in 280 Remington, as you won't need multiple seating dies.

What does "reversible guide" mean, and why does it matter?

The floating bullet guide can be unthreaded, flipped, and reinstalled to enable simultaneous seating and crimping in a single stroke. This is an exclusive Lee feature and saves you from buying or swapping in a separate crimping die if your reloading process calls for both operations.

Is this a dead-length seating die, and how does that affect my loads?

Yes. When the die body contacts the shell holder, you're seating relative to the case itself, not the press ram, which ensures every round is seated to the same absolute depth. This is considered the most uniform seating method and is preferred by precision reloaders.