The Redding 284 Winchester Type S - Bushing Neck Sizing Die (Part #71141) is a precision reloading tool engineered to resize cartridge case necks without altering the case body or shoulder dimensions of fire-formed brass. Designed for the .284 Winchester cartridge taking a .284" bullet diameter, this fully mechanical die mounts to standard reloading presses via industry-standard 7/8"-14 TPI threading. It allows handloaders to maintain tight control over neck tension and case concentricity, extending brass life by eliminating unnecessary working of the case wall.

Key Features

  • Interchangeable Bushing System: Accepts Redding Type S neck sizing bushings (as well as compatible Wilson and Hornady bushings) adjustable in .001" increments, allowing exact neck tension adjustment without over-working cartridge brass.
  • Self-Centering Floating Design: The sizing bushing freely floats within the die body to self-centre over the case neck, minimising bullet runout.
  • Adjustable Sizing Depth: Features an adjustable decapping rod assembly that allows reloaders to size the entire neck or only a partial length of the case neck.
  • Dual Configuration Setup: Includes both a standard size/expander button for commercial unturned case necks and a decapping pin retainer for turned brass requiring sizing without an expander button.
  • Standard Press Integration: Operates on standard single-stage or turret presses utilising standard 7/8"-14 TPI mounting threads and functions with Redding #1 standard or competition shellholders.

Product Specifications

  • Calibre: .284 Winchester
  • Compatible Bullet Diameter: .284"
  • Die Mounting Thread: 7/8"-14 TPI
  • Shellholder Compatibility: Redding #1 Shellholder (Part #11001) or Competition Shellholder #1 (Part #11601)
  • Packaging Weight: Approximately 0.35–0.45 kg (0.8–1.0 lb)
  • Operation Type: Fully mechanical neck-sizing die

Who is the Redding 284 Winchester Type S - Neck Die for?

  • F-Class Open and TR target competitors shooting 284 Winchester — who require minimal bullet runout and precise neck tension control across .284" bullet diameter fire-formed cases using self-centring bushings mounted in standard 7/8"-14 TPI presses.
  • Precision hunters reloading 284 Winchester for bolt-action rifles — who want to maximise case life and maintain custom-formed brass dimensions for .284" bullet diameter cartridges by resizing only the neck on standard 7/8"-14 TPI reloading equipment.

Less suitable for: Fire-formed cases that have expanded through repeated firing cycles to cause tight or stiff bolt closure during chambering; handloaders encountering this resistance require a full-length sizing die or a dedicated body die to bump the shoulder and resize the case body.

SKU RD41727LP
Model # 71141
Brand Redding
Shipping Weight 1.0000kg

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