Redding 300 Remington Ultra Magnum Full-Length Die Set

The Redding 300 Remington Ultra Magnum Full-Length Die Set (brand part no. 80288) includes a full-length sizing die and a seating die for handloaders who need brass that will chamber reliably across more than one rifle or action. Full-length sizing resets the case body, shoulder, and neck to factory dimensions on every firing, which trades a bit of brass life for dependable chambering, the standard choice for hunting rifles, general-purpose loads, and any brass that gets rotated between guns.

Key Specifications

• It is chambered for 300 Remington Ultra Magnum, resizing that cartridge’s case body, shoulder, and neck to spec.
• The set includes a full-length sizing die and a seating die, a complete two-die setup.
• Full-length sizing works on steel dies that require a case lube step before resizing.

Frequently Asked Questions

How is this different from a neck sizing die? Full-length sizing resets the entire case body, shoulder, and neck to factory dimensions, so the brass will chamber reliably in any rifle. Neck sizing only touches the neck and is meant for brass fired in one chamber.

Do I need case lube with this set? Yes. These are conventional steel dies, so cases need a light coat of case lube before running them through the full-length sizing die.

Buy the Redding 300 Remington Ultra Magnum Full-Length Die Set

Keep your 300 Remington Ultra Magnum brass chambering reliably no matter which rifle it ends up in with this full-length sizing and seating combo. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and browse our reloading dies for case lube and the rest of the Redding lineup.