The Redding 38 Super Form & Trim Die (MPN: 83271) is a precision-machined, bench-mounted reloading tool designed to hold .38 Super Auto brass securely inside a standard press for manual case trimming and mouth squaring. Built from hardened tool steel, the die allows excess case length to be removed flush using a standard flat metal file without damaging the die face. Cut to standard chamber dimensions rather than full-length sizing dimensions, it profiles and squares cases without overworking or hardening the brass during the trimming or case-forming process.

Key Features

  • File-Trim Functionality: Secures .38 Super Auto cases to allow manual trimming flush across the heat-treated, hardened tool steel die face.
  • Chamber-Dimension Profiling: Cut to standard chamber specifications to hold brass true without the excessive work-hardening caused by full-length sizing dies.
  • Case Forming Capability: Serves as an intermediate forming and trimming die when reforming donor brass to .38 Super dimensions prior to final sizing.
  • Standard Press Mounting: Integrates with conventional single-stage presses via industry-standard 7/8"-14 threading.

Specifications

  • Manufacturer: Redding Reloading Equipment
  • Manufacturer Part Number (MPN): 83271
  • Calibre Compatibility: .38 Super Auto (.355" projectile diameter)
  • Thread Size: 7/8"-14 industry-standard press thread
  • Shellholder Compatibility: Standard Redding Shellholder #10 (extended shellholder may be required for short-case clearance)
  • Power Requirements: Manual / non-powered mechanical operation
  • Material: Heat-treated, precision-ground hardened tool steel

Who is the Redding 38 Super Form & Trim Die for?

  • IPSC and Action Pistol Competitors — Requires precise case-length consistency for high-pressure .38 Super Auto ammunition using .355" projectiles to maintain reliable feeding, proper headspacing, and uniform crimping in competition handguns using this 38 Super reload trim die.
  • Precision Handloaders — Mounts via standard 7/8"-14 threads into standard single-stage reloading presses, allowing reloaders to square mouths and file-trim .38 Super Auto cases to exact length without work-hardening the brass.

Less suitable for: High-volume reloaders producing hundreds to thousands of rounds per hour, who are better served by motorized case trimmers or progressive press-mounted power trimmers, or those reloading .38 Special, .357 Magnum, or 9x19mm Luger cartridges, which require their own calibre-specific trimming dies.

SKU RD41930LP
Model # 83271
Brand Redding
Shipping Weight 1.0000kg

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