Product Overview

Peterson 300 RUM Casings are built for shooters who demand match-grade consistency from every round they send downrange. Made in small batches and inspected from the production line to the quality control bench, these unprimed brass cases give you a rock-solid foundation for precision handloads in your 300 Remington Ultra Magnum. Each box includes 50 carefully crafted Peterson Cartridge cases, designed to deliver reliable neck tension, uniform case capacity and long service life. Whether you’re stretching things out on steel or fine-tuning a hunting load, this brass is engineered to help you hold tight groups and keep your rifle performing at its best, shot after shot.

Key Features

• Match-grade manufacturing delivers highly consistent brass casings, helping shooters achieve repeatable accuracy shot after shot.
• Small-batch production lines allow tighter process control, resulting in uniform case dimensions for reliable chambering and performance.
• Robust quality control from factory to final packaging ensures each casing meets strict standards for durability and longevity.
• Unprimed brass design gives reloaders full control over primer choice and load development for tailored ballistic performance.
• Precision-formed case necks and shoulders promote secure bullet seating, supporting improved concentricity and downrange precision.
• High-quality brass construction resists splitting and deformation, extending case life over multiple reload cycles.
• Clean, smooth case finish aids in easy handling and feeding through magazines and actions during loading and firing.
• Headstamp identification helps reloaders quickly sort and track Peterson 300 RUM brass in mixed lots on the bench or at the range.
• Supplied in a box of 50 casings, providing a practical quantity for load development and match preparation.
• Designed specifically for 300 Remington Ultra Magnum rifles, ensuring proper fit and optimal performance in compatible chambers.