The Redding Taper Crimp Die – .300 AAC Blackout (MPN: 85327) is a precision reloading tool manufactured from heat-treated alloy steel. Designed to perform crimping as an independent, final step after bullet seating, it applies a uniform taper crimp to finished .300 AAC Blackout ammunition. This dedicated operation eliminates the risks of shoulder buckling and bullet deformation that can occur when seating and crimping simultaneously. The die progressively closes the case mouth around standard .308 in (7.62 mm) projectiles, providing consistent bullet retention and smooth chamber feeding across repeating and bolt-action rifle platforms.

Key Features

• Dedicated Taper Crimp: Separates the crimping stage from seating to ensure consistent bullet grip without overworking brass or collapsing case shoulders.
• Precision Steel Construction: Machined from heat-treated alloy steel to maintain tight tolerances and long-term wear resistance on the reloading bench.
• Non-Cannelured Bullet Compatibility: Delivers secure neck tension on smooth-jacketed, monolithic, or cannelured bullets without cutting into the jacket material.
• Universal Press Mounting: Uses standard 7/8"-14 TPI threading to interface with standard single-stage and progressive reloading presses.
• Shellholder Compatibility: Functions with standard Redding Shellholder #10 or Redding Competition Shellholder #11610 (sold separately).

Specifications

• Product Name: Redding Taper Crimp Die – .300 AAC Blackout
• Manufacturer Part Number (MPN): 85327
• Calibre: .300 AAC Blackout
• Bullet Diameter Compatibility: .308 in (7.62 mm)
• Thread Interface: 7/8"-14 TPI
• Material: Heat-treated alloy steel
• Operation Type: Mechanical (non-electric)
• Packaged Weight: Approximately 0.2–0.3 kg

Who is the Redding .300 AAC Blackout Taper Crimp Die for?

• Australian handloaders reloading .300 AAC Blackout for bolt-action rifles — provides precise bullet retention on .308 in (7.62 mm) projectiles across standard 7/8"-14 TPI single-stage presses, preventing neck distortion and maintaining chamber concentricity.
• Feral pest controllers loading .300 AAC Blackout for repeating platforms — ensures consistent feed reliability in .300 AAC Blackout sporting platforms by securing non-cannelured and cannelured bullets against recoil displacement and magazine setback.

Less suitable for: Heavy magnum cartridges requiring a deep roll crimp into a dedicated cannelure groove; handloaders managing heavy magnum recoil should use a dedicated conventional roll crimp die instead.