Lee Precision Micrometer Adjust Screw: total control in bullet seating.

In ammunition reloading, precision is not a luxury—it’s a necessity. Even the slightest variation in seating depth can change internal pressure, alter bullet velocity, and directly affect shooting accuracy. To meet this demand for exactness, Lee Precision has launched its new range of Micrometer Adjust Screws, an accessory designed to transform any Lee bullet seating die into a micrometric adjustment tool.

Key Features

The new Lee Micrometer Adjust Screw offers three main advantages that place it ahead of other systems on the market:

• Laser-engraved divisions reading down to 0.001” (one-thousandth of an inch), allowing unmatched adjustment control.

• Smooth, click-free adjustment, thanks to the integrated friction ring that eliminates jumps and ensures continuous and precise movement.

• Quick and easy installation by replacing the traditional adjustment screw with the new micrometer, manufactured with a satin finish for smoothness and durability.

In addition, its design is aimed at the practical reloader: it mounts in just seconds and comes at a significantly lower price than other brands offering similar performance.

Three versions for every need

Lee Precision offers the Micrometer Adjust Screw in three variants, tailored to the type of ammunition and die you use:

• Handgun Micrometer (Ref. 92150) – Ideal for handgun cartridges, providing speed and consistency in long reloading sessions.

• Rifle Micrometer (Ref. 92215) – Designed for rifle reloading, where every thousandth of an inch matters to achieve maximum precision in competition shooting or long-range hunting.

• Large Caliber Micrometer (Ref. 92218) – Intended for Magnum calibers and large projectiles, ensuring a solid and perfectly controlled seating.

Compatibility and availability

These micrometers are compatible with Lee Precision bullet seating dies that use the “bullet seating plug” style shown in the catalog. And if you don’t own Lee dies, no problem: the brand offers more than 175 cartridges available with the micrometer option already installed—at a price still more competitive than other brands.

A step forward for demanding reloaders

For those seeking repeatability, consistency, and extreme accuracy in their ammunition, the Lee Precision Micrometer Adjust Screw is a smart investment. Whether you reload for competition, hunting, or recreational shooting, this accessory ensures that every cartridge will be set up exactly the same as the previous one.

Micrometer for Factory Crimp Die: perfect adjustment in one step

In 2025, the Lee Precision micrometer family expands with an accessory specially designed for users of the popular Carbide Factory Crimp Die. This new micrometer transforms the die into the most precise and easiest-to-adjust seating and crimping tool the brand has ever manufactured.

Precision and convenience in every cartridge

With this micrometer, the bullet seating depth is adjusted with the same accuracy as a laboratory micrometer, reaching minimum variations of 0.001” thanks to its laser-engraved scale. In addition:

• Seating length is uniform across all cartridges.

• Crimp adjustment is simple and does not require moving the die once installed.

• After seating and crimping, the cartridge is externally resized to ensure chamber compatibility.

• Saves one step in the reloading process—ideal for progressive or turret presses with limited stations.

This means that in a single operation, the bullet is seated, crimped, and the cartridge is ready to fire, freeing up an extra station in the press for other accessories, such as the Lee Inline Bullet Feed Kit.

Quick and hassle-free installation

Assembly is as simple as unscrewing the original adjustment screw from your Factory Crimp Die and replacing it with the micrometer specific to the caliber. The lock ring secures the position and allows for further adjustments without losing the previous setting.

To adjust seating, simply turn the micrometer drum—each line represents a variation of 0.001”—until the desired overall cartridge length is reached.

Ideal for demanding reloaders

Whether you reload large batches for competition or seek maximum uniformity for hunting or precision shooting, this micrometer allows you to repeat exact settings time and time again—without unnecessary trial and error, and with the confidence that all your cartridges will deliver the same performance.