The Redding 56114 Competition Neck Sizing Die is a match-grade reloading tool engineered specifically for .243 Winchester cartridge cases. Designed to size only the neck of fire-formed brass while minimising runout, this die uses a free-floating, self-centring bushing system and an internal full-alignment sliding sleeve to guide and support the case before sizing begins. Handloaders can control neck tension precisely without overworking brass or requiring an expander ball, extending cartridge case life and preserving fire-formed case dimensions for dedicated bolt-action rifles.

Key Features

  • Full Alignment Sliding Sleeve: Features an internal sliding sleeve that fully captures and centres the cartridge case body before the neck enters the sizing bushing.
  • Precision Micrometer Adjustment: Features a top-mounted micrometer that allows handloaders to adjust the exact length of the case neck being sized in fine increments.
  • Self-Centring Bushing Design: Accommodates interchangeable neck sizing bushings (sold separately) that float freely within the die to eliminate concentricity errors and runout.
  • Floating Decapping Assembly: Retains linear decapping pin alignment without the need for an expander button, preventing neck stretching during the press downstroke.

Specifications

  • Calibre Compatibility: .243 Winchester (0.243 in / 6mm bullet diameter)
  • Die Type: Micrometer-adjustable competition bushing neck sizing die
  • Thread Interface: Standard 7/8"-14 reloading press threading
  • Shellholder Compatibility: Redding Shellholder #1 or Competition Shellholder Set #1
  • Unit Weight: ~0.499 kg
  • Packaging Dimensions: 152 mm (L) × 112 mm (W) × 41 mm (H)
  • Power Requirements: None (purely mechanical operation)

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

  • Precision benchrest shooters reloading for .243 Winchester bolt-action rifles — sizes only the neck of fire-formed brass to match a specific chamber using a micrometer-adjustable bushing system on standard 7/8"-14 threaded reloading presses.
  • Long-range competition shooters seeking to maximise case life and accuracy — controls neck tension on 0.243 in (6mm) diameter cases via interchangeable self-centring bushings, eliminating the need for an expander ball and minimising brass fatigue.

Less suitable for: Reloaders preparing brass for semi-automatic, pump-action, or lever-action rifles, brass fired across multiple different firearms, or cases where repeated firings cause tight bolt-lift due to shoulder and body growth; these conditions require a full-length sizing die or the addition of a dedicated body die to restore factory body dimensions and bump the shoulder back.

SKU RD102257LP
Model # 56114
Brand Redding
Shipping Weight 0.2000kg

What our Customers are Saying