Redding 300 Remington Ultra Magnum Full Length Die Set

The Redding 300 Remington Ultra Magnum full length die set is the foundation of any serious reloading operation for this powerful magnum rifle cartridge. Whether you're preparing ammunition for long-range hunting, precision rifle competition, or simply want to reload for one of the most capable big-game rounds available, this die set gives you the essential tools to produce consistent, safe ammunition. Redding has built a reputation for tight tolerances and reliable performance, and their 300 RUM dies are engineered to handle the demands of this high-pressure round.

This full length die set includes both the full length sizing die and the standard seating die—everything you need to resize fired cases back to factory dimensions and seat bullets to proper depth in a single package. The full length sizing die restores your brass to precise specifications, ensuring reliable feeding and consistent chamber fit in your rifle. The seating die allows you to dial in the exact seating depth your load requires, giving you control over pressure curves and bullet-to-lands spacing—critical variables for magnum cartridges.

If you're new to reloading the 300 RUM or already have a press and equipment dialed in, this Redding die set integrates seamlessly into any standard reloading press setup. The precision and repeatability built into these dies mean you'll spend less time troubleshooting and more time shooting accurate loads. For hunters and shooters who demand reliable, repeatable ammunition, Redding dies have been the standard in the industry for generations.

Key Features

• Complete full length die set for 300 Remington Ultra Magnum cartridges
• Includes full length sizing die and standard seating die
• Designed for use with standard reloading presses
• Precision-engineered for consistent case sizing and bullet seating

Specifications

Frequently Asked Questions

What dies are included in the Redding 300 RUM full length die set?

The set includes a full length sizing die and a standard seating die. These two dies handle the core reloading processes: resizing fired cases to factory dimensions and seating bullets to the proper depth.

Will this die set work with my reloading press?

This die set is designed for use with standard reloading presses. Confirm your press accepts standard die dimensions before ordering.

Is this die set suitable for 300 Remington Ultra Magnum ammunition?

Yes, this full length die set is specifically engineered for the 300 Remington Ultra Magnum cartridge and is designed to handle the pressures and dimensions of this magnum round.