The Redding 81114 Neck Sizing Die for .243 Winchester Bottleneck Cases resizes the case neck to provide proper bullet retention while preserving the fire-formed dimensions of the case body and shoulder. Machined from heat-treated alloy steel on precision CNC lathes and hand-polished, this die minimizes brass working to extend case life and maintain alignment with an individual bolt-action rifle chamber. An internal decapping rod assembly automatically expels spent primers and expands the neck during the sizing stroke on standard reloading presses.

  • Targeted Neck Sizing: Restricts resizing strictly to the neck of fired .243 Winchester brass, preventing excessive metal fatigue and maintaining fire-formed chamber fit.
  • Integrated Decapping and Expanding: Features a hardened steel decapping rod assembly (#33242) and expander button (#39242) to deprime and set internal neck tension in a single operation.
  • Precision Machined Construction: Manufactured from heat-treated alloy steel with hand-polished internal surfaces to resist wear and maintain concentricity.
  • Standard Press Interface: Built with industry-standard 7/8"-14 threads and a dedicated 7/8"-14 lock ring (#01016) for universal compatibility with standard bench reloading presses.

Specifications

  • Calibre Compatibility: .243 Winchester (6mm / 0.243 in bullet diameter)
  • Thread Interface: 7/8"-14 TPI
  • Shellholder Required: Redding #1 Shellholder (Part #11001 or #11601)
  • Internal Assembly Parts: Decapping rod assembly (#33242), expander button (#39242), decapping pin (#01060)
  • Material: Heat-treated alloy steel
  • Operation: Manual reloading die

Who is the Redding Neck Sizing Die for .243 Winchester for?

  • Bolt-action rifle handloaders — Sizes exclusively the neck of fired .243 Winchester (0.243 in bullet diameter) brass to preserve the exact fire-formed shoulder and body dimensions of a single dedicated rifle chamber using standard 7/8"-14 TPI press setups.
  • Precision target shooters and hunters — Reduces brass cold-working and prolongs case service life across repeated firings by eliminating body sizing on .243 Winchester cases that match the Redding #1 Shellholder interface.

Less suitable for: Handloaders loading for semi-automatic, lever-action, or pump-action rifles, brass used across multiple different firearms, or cases experiencing stiff bolt closure after 3 to 5 reload cycles due to shoulder growth; these conditions require a full-length sizing die or dedicated body die to bump the shoulder and resize the case body for reliable feeding.

SKU RD102268LP
Model # 81114
Brand Redding
Shipping Weight 0.2000kg

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