The Lee Precision 300 Rem Ultra Mag Rifle Precision Micrometer Bullet Seating Die (brand part no. 92342) replaces trial-and-error seating depth adjustment with a micrometer dial that moves in 0.001-inch increments, so handloaders can dial in and repeat an exact seating depth for 300 Rem Ultra Mag. Lee Precision built the die around a graduated micrometer head rather than a plain lock ring, which matters most once you’re chasing a specific jump to the lands for extreme long-range (ELR) shooting. Settings are easy to record and return to on a future loading session, cutting down the fired-round measuring that a standard seater die requires.

Key Specifications

• Machined for the 300 Rem Ultra Mag cartridge and bullet profile.
• Micrometer adjustment dial moves seating depth in 0.001-inch increments for precise, repeatable settings.
• Graduated markings let you record a proven seating depth and return to it on a later loading session without re-measuring from scratch.
• Replaces the lock-ring adjustment used on a standard seating die, cutting out most of the trial-and-error resetting.
• Built for handloaders fine-tuning seating depth for extreme long-range (ELR) shooting.

Frequently Asked Questions

How precisely can seating depth be adjusted? The micrometer head adjusts in 0.001-inch increments, which lets you dial in and repeat an exact seating depth.

Does this die resize the case? No, this is a seating die only. It seats the bullet to a precise depth; a separate sizing die handles case resizing.

Is this seating die specific to 300 Rem Ultra Mag? Yes, it is machined for 300 Rem Ultra Mag cases and bullets and is not interchangeable with other cartridges.

Buy the Lee Precision 300 Rem Ultra Mag Rifle Precision Micrometer Bullet Seating Die

Order the Lee Precision 300 Rem Ultra Mag Rifle Precision Micrometer Bullet Seating Die from our Lubbock, Texas gun shop for fast shipping to your bench. Browse our reloading dies selection for a matching 300 Rem Ultra Mag sizing die.