Hornady Full Length Two Die Set - 300 Remington Short Ultra Magnum (300RSUM)

The Hornady Full Length Two Die Set for 300 Remington Short Ultra Magnum (300RSUM) is a complete reloading solution built for handloaders working with this hard-hitting short-action magnum cartridge. If you're assembling precision ammo for a short-action rifle chambered in 300RSUM, this two-die set gives you the essential tools to resize, deprime, and seat bullets with consistency.

A full length die set is the foundation of repeatable reloading. The first die resizes your fired brass to spec and removes the old primer in one stroke; the second die seats your new bullet and crimp in a second pass. This approach works well for shooters who load for multiple rifles or who want maximum dimensional consistency shot-to-shot. Hornady's tooling is known for accuracy and durability, making this set a solid choice whether you're building hunting ammo or developing a precision load at the range.

The 300RSUM is a potent short-action round that delivers magnum performance in compact rifles—ideal for hunters and shooters who value maneuverability without sacrificing power. Reloading for it means you can tailor your loads to your rifle, powder, bullet weight, and hunting or range purpose, and this Hornady set gives you the dies to do it right.

Key Features

• Complete two-die set: full length sizing/depriming die and seating/crimp die
• Designed for 300 Remington Short Ultra Magnum (300RSUM) brass
• Hornady precision manufacturing for consistent results
• Suitable for hunters and range shooters reloading high-performance magnum loads

Specifications

Frequently Asked Questions

Will this die set work with my 300RSUM rifle?

Yes, this set is designed specifically for 300 Remington Short Ultra Magnum brass and cartridges. Make sure your rifle is chambered in 300RSUM before ordering.

What's included in the two-die set?

You receive two dies: a full length sizing/depriming die and a seating/crimp die. These are the core tools needed to resize fired brass and seat bullets for reloading 300RSUM ammunition.

Can I use this set if I reload for multiple rifles in 300RSUM?

Yes. A full length sizing die ensures that brass fired in any 300RSUM rifle will be resized to standard specifications, making your ammunition compatible across multiple rifles in that caliber.