The RCBS 7mm BR Rem Full Length Die Set (Part No. 34101 / R34101) is a precision two-die reloading set manufactured in the USA from proprietary heat-treated steel. Engineered specifically for handloading bottleneck cartridge cases for the 7mm Remington Benchrest (7mm BR Rem), this set restores fired brass to SAAMI minimum factory dimensions and seats .284-calibre projectiles to uniform overall lengths. Built with standard 7/8"-14 threads, it is compatible with single-stage and progressive reloading presses across major press platforms.

Key Features

• Full-Length Resizing: The sizer die restores the entire case body and shoulder of spent 7mm BR Rem brass to factory dimensions while depriming and expanding the case neck in a single press stroke.
• Internal Venting: Features integrated air and lubricant bleed holes to prevent hydraulic shoulder denting during the sizing stroke.
• Precision Bullet Seater Die: Guides projectiles smoothly into the case neck for consistent seating depths and includes an internal roll crimp ring that can be adjusted or disengaged.
• Standard Press Mounting: Uses the universal 7/8"-14 thread standard to ensure direct compatibility with standard "O-frame" and progressive reloading presses.
• Protective Packaging: Supplied in a standard RCBS green storage box to protect the dies from shop debris and bench impact.

Specifications

• Calibre: 7mm Remington Benchrest (7mm BR Rem / .284 calibre bullet diameter)
• Die Type: 2-Die Set (Full-Length Sizer with expander-decapper; Bullet Seater with roll crimper)
• Thread Standard: 7/8"-14 thread
• Material: Heat-treated die steel (requires external case lubricant)
• Weight: Approximately 0.5–0.6 kg (packaged)
• Box Dimensions: Approximately 12 × 10 × 4 cm

Who is the RCBS 7mm BR Rem Full Length Die Set for?

• Metallic silhouette pistol shooters — who handload .284-calibre ammunition for specialised handgun platforms like the Remington XP-100, requiring a 7mm BR Rem Full Length Die Set fitted with standard 7/8"-14 threads to reliably return spent brass to factory SAAMI minimum specifications for smooth chambering across silhouette targets up to 500+ metres.
• Bolt-action target and custom benchrest rifle shooters — who assemble precision 7mm Remington Benchrest rounds using single-stage presses with 7/8"-14 threading, needing consistent bullet seating and decapping across dedicated match brass.

Less suitable for: Handloaders firing brass exclusively through a single, dedicated bolt-action rifle chamber who wish to maximise case life on fire-formed brass (a dedicated Neck Sizing Die is better suited), or shooters running tight-chambered semi-automatic or pump actions requiring extra body reduction below standard SAAMI dimensions (a Small Base Sizer Die is better suited).