RCBS Full Length Die Set for .300 Remington Ultra Magnum (Part #31201)

300 REM SA ULTRA MAG GP-A

The RCBS Full Length Die Set for .300 RUM is designed for precision reloaders seeking reliable and consistent case sizing. This two-die set includes a Full-Length Sizer Die with an Expander-Decapping Unit and a Seater Die with a built-in bullet seater plug and roll crimper, ensuring accurate seating and secure bullet retention. The Full-Length Sizer Die brings cases to SAAMI minimum cartridge dimensions, sizing the outside of the case, de-primming, and expanding the neck to accept bullets efficiently. The die features venting to prevent trapped air and excessive lubricant buildup, reducing the risk of case damage and ensuring smooth operation. Headspace is maintained within tight tolerances, preventing changes to case body length during full-length resizing, which promotes consistent reloads and extended case life. The included Seater Die is designed for precise bullet seating and features a built-in roll crimper, allowing for the secure attachment of bullets in a single step. Crafted for reloaders who demand quality and accuracy, this die set is perfect for developing load data for hunting, target shooting, or precision rifle applications. Its compact dimensions make it easy to handle and store, while the sturdy construction ensures durability through many reloading cycles. Whether you're upgrading your reloading setup or starting a new project, the RCBS Full Length Die Set for .300 RUM provides the essential tools for efficient and accurate case preparation.

Features:

• Caliber: .300 Remington Short-Action Ultra Magnum

• Two-die set includes a Full-Length Sizer Die and a Seater Die

• Full-Length Sizer Die sizes cases to SAAMI minimum dimensions, de-primes, and expands neck

• Vented die design prevents trapped air and excessive lubricant

• Headspace maintained within tight tolerances for consistent resizing

• Seater Die features built-in bullet seater plug and roll crimper for secure seating

• Compact dimensions facilitate handling and storage

• Durable construction suitable for extensive reloading use