Lee Precision 8.6 Blackout Rifle Precision Micrometer Bullet Seating Die

The Lee Precision 8.6 Blackout Rifle Precision Micrometer Bullet Seating Die brings dead-length seating precision to your reloading bench without the premium price tag. Built for handloaders who demand consistent bullet seating depth across every round, this micrometer die uses a floating bullet guide that holds case and bullet in perfect alignment while allowing radial clearance—a design that minimizes bullet runout and ensures repeatable, uniform seating every time you pull the press handle.

What sets this die apart is its micrometer-style adjustment system. The laser-engraved thimble and body read just like a precision depth micrometer, with divisions marking one-thousandth of an inch increments. You get infinitely adjustable seating depth with easy readability, letting you dial in your load with confidence and return to the exact same setting session after session. The machined and burnished bullet seating stem handles nearly any point style without marking or deforming the bullet—critical when you're working with premium projectiles.

The reversible floating bullet guide is a genuine Lee exclusive: simply unthread it and flip it back in to enable simultaneous seating and crimping in a single stroke, cutting your press operations and saving time on high-volume loading days. Whether you're precision loading for a match rifle, hunting loads, or general practice ammo, this die delivers the accuracy and repeatability serious reloaders expect from Lee's straightforward, no-nonsense engineering.

Key Features

• Micrometer adjustment reads in one-thousandth-inch increments for dead-length seating precision
• Floating bullet guide minimizes bullet runout and ensures perfect case-to-bullet alignment
• Machined and burnished seating stem handles any bullet point style without marking
• Reversible guide allows simultaneous seating and crimping in one press stroke
• Laser-engraved markings for easy, reliable depth reference
• Infinitely adjustable for custom seating depths

Specifications

Frequently Asked Questions

Is this die compatible with all 8.6 Blackout reloading presses?

This is a standard rifle die designed for use in any press with a standard 7/8"–14 thread, which covers most common reloading presses. Check your specific press manual to confirm compatibility.

Can I seat bullets and crimp in the same stroke?

Yes. The floating bullet guide is reversible—simply unthread it and reinstall it flipped to enable simultaneous seating and crimping in one press stroke, an exclusive Lee feature.

Will this die work with different bullet shapes and styles?

The machined and burnished seating stem is designed to handle nearly any point style bullet without marking or deformation, giving you flexibility with the bullets you choose.

What does "dead length" seating mean?

Dead length seating means the die body contacts the shell holder, ensuring precise and uniform seating depth every time you load a round. This method delivers the consistency serious handloaders need for accuracy.