Magnum cartridges are expensive to feed from the factory shelf. The Lee 300 Weatherby Mag Micrometer Full Length Die Set (brand part no. 92423) pairs a full-length sizing die with Lee’s micrometer bullet seating die for 300 Weatherby Mag, one of the most proven fast .30-caliber magnums in the field. Lee Precision builds the seater around a micrometer adjustment that dials seating depth in fine, repeatable increments, while the full-length sizer returns fired brass to factory dimensions for smooth chambering in any rifle. A universal shell holder, powder dipper, and load data round out the box, so the set favors magnum hunters working up full-power big-game loads with precision seating control. Among reloading dies, this Micrometer Full Length set brings match-style seating control to a working handloader’s bench.

Key Specifications

• The die set covers 300 Weatherby Mag.
• The full-length sizing die returns fired brass to factory dimensions for reliable chambering.
• The micrometer bullet seating die adjusts seating depth in fine, repeatable increments.
• Ships with a universal shell holder, so no separate holder purchase is needed.
• Includes a powder dipper and load data to get a first load on the bench.

Frequently Asked Questions

What does the micrometer seater add over a standard die? A calibrated adjustment that moves seating depth in fine, repeatable steps, making it easy to return to a proven load.

What else do I need to start loading? Just a standard 7/8×14-threaded press, components, and case lube for sizing; the shell holder, dipper, and load data are included.

Buy the Lee 300 Weatherby Mag Micrometer Full Length Die Set

Repeatable micrometer seating control for 300 Weatherby Mag handloads is exactly what this Lee set delivers. Order it from our Lubbock, Texas gun shop for fast shipping.