Peterson 300 RUM Brass

Peterson Cartridge 300 RUM Brass

Give your 300 Remington Ultra Magnum the brass it deserves. Peterson Cartridge draws every case in the USA to match-grade tolerances, giving handloaders a consistent, durable foundation for one of the hardest-hitting .30 caliber magnums available.

The 300 RUM drives heavy, high-BC .30 caliber bullets at top-end velocity, and its large powder charges are hard on brass. Peterson holds tight control over case weight, wall thickness, and overall length, so your charges, neck tension, and velocities stay consistent from one round to the next. The result is lower extreme spreads, tighter groups, and more confidence when the shot is long.

Peterson brass is also built to last. Carefully controlled hardness in the case head and proper annealing at the neck and shoulder mean longer case life and more firings before retirement, which matters with a magnum of this size.

Features

• Match-grade 300 Remington Ultra Magnum rifle brass, unprimed
• Tight tolerances on weight, wall thickness, and length for consistent velocities
• Strong case head for long life under magnum pressures
• Annealed neck and shoulder for consistent neck tension and repeated reloading
• Uses a Large Rifle Magnum primer
• Packaged in a reusable plastic ammo box
• Made in the USA

Whether you’re loading for elk and moose in big country or reaching out to extended range, Peterson 300 RUM brass gives you a foundation you can trust.

*The flip top cases are considered protective packaging and cannot be replaced if cracked during shipment.

• Made in the U.S.A.
• 50 ct

Peterson Cartridge Co is committed to producing Match-Grade Brass that enables our customers to get more reloads per casing than industry average.

Warning: Only use Peterson Cartridge Co. casings in firearms in good condition, designed, marked, and chambered for this cartridge. Do not use Peterson Cartridge Co casings for "fire forming" or any other purpose other than what they were designed and tested for. Peterson retains no responsibility for the enclosed casings if they are used outside of the manufacturer's recommendations. This is not loaded ammunition.

About Peterson Cartridge

Peterson Cartridge is a family-owned, American manufacturer of match-grade brass rifle casings that are among the most precise and consistent on the market, delivering discerning long-distance shooters sub-MOA accuracy and more reloads per casing than the industry average.