The Redding Small Base Body Die for 6mm BR Remington (MPN: 74317) is a specialised reloading die engineered to resize case body diameters and bump shoulder headspace without touching or altering case neck dimensions. Machined with dimensions typically 0.001" to 0.002" smaller than standard full-length dies, it restores proper chambering and extraction tolerances for brass fired repeatedly in precision actions. Designed without internal parts such as decapping rods, expander balls, or bushings, it serves as a companion die to dedicated neck-sizing setups.

Key Features

• Small Base Dimensioning: Reduces case body diameter 0.001" to 0.002" below standard SAAMI minimum dimensions to eliminate sticky extraction in tight chambers.
• Shoulder Bump Control: Sets back the case shoulder to restore factory headspace without contacting the case neck geometry.
• Open Neck Profile: Operates without an expander assembly or decapping pin, allowing reloaders to resize case bodies independently of neck-tension operations.
• Universal Press Mounting: Uses standard 7/8"-14 reloading press threading for direct compatibility with standard single-stage and turret reloading presses.
• Companion Die Application: Functions alongside bushing and neck-sizing dies when work-hardened cases begin chambering tightly after multiple firing cycles.

Specifications

• Manufacturer Part Number (MPN): 74317
• Calibre Compatibility: 6mm BR Remington (6mm Bench Rest Remington / 6mm Norma BR variants)
• Thread Interface: 7/8"-14 industry-standard press threads
• Shellholder Compatibility: Redding #1 Shellholder (PN: 11001) or Competition Shellholder set (sold separately)
• Operation: Manual / mechanical (1 case per stroke; requires case lubrication)
• Internal Assembly: None (no decapping pin, expander ball, or sizing bushing)

Who is the Redding Small Base Body Die for?

• Precision rifle competitors shooting 6mm BR — requires consistent chambering across repeated match cycles using 7/8"-14 threaded single-stage or turret presses, where this small base reloading body die sizes the case body down 0.001" to 0.002" below SAAMI minimums and sets the shoulder back without disturbing delicate neck tension settings.
• Long-range varmint shooters using tight custom chambers — addresses hard bolt closure and sticky extraction on brass fired in tight-tolerance chambers by using this small base reloading body die on standard 7/8"-14 press setups to compress the case body diameter by an extra 0.001" to 0.002" compared to standard dies.

Less suitable for: Standard SAAMI chambers where standard-dimension full-length dies or standard body dies prevent overworking brass, or handloaders requiring one-step neck sizing and decapping who need dedicated neck-sizing dies or full-length sizing dies with integrated decapping assemblies.