The Redding 58111 Competition Neck Die Set is a precision 3-die handloading kit engineered for reloading match-grade .223 Remington (.224" bullet diameter) ammunition. Operating via standard 7/8"-14 reloading press threading, this manual mechanical set provides complete control over cartridge concentricity, shoulder bump, and neck tension on fire-formed cases. By isolating neck sizing, body sizing, and bullet seating into dedicated steps, the set minimises brass fatigue and significantly reduces bullet runout.

Key Features:

• Micrometer Neck Sizing: The competition bushing neck sizing die uses a micrometer adjustment system to precisely set the engagement length of the bushing, preventing overworking of the case neck.
• Internal Alignment Sleeves: Both the neck sizing and seating dies feature sliding internal sleeves that fully support and center the .223 Remington case prior to tool contact, ensuring tight concentricity.
• Isolated Body Die: The included body die resizes the case body and sets the shoulder back without contacting or changing the dimensions of the case neck.
• 0.001" Micrometer Seating Die: Calibrated in 0.001" increments, the competition seating die provides precise, repeatable control over overall cartridge length (COAL) and seating depth.

Specifications:

• Calibre: .223 Remington (.224" bullet diameter)
• Die Set Contents: Competition Bushing Neck Sizing Die, Body Die, and Competition Seating Die
• Thread Standard: 7/8"-14 TPI
• Seating Adjustment: Micrometer calibrated in 0.001" increments
• Shellholder Compatibility: Redding #10 or Competition Shellholder #11610 (sold separately)
• Bushing Requirement: Redding interchangeable neck bushings (sold separately, typically 0.243" to 0.251" for .223 Rem)
• Packaged Dimensions: 152 × 114 × 43 mm (6.00 × 4.50 × 1.60 in)
• Weight: Approximately 0.86 kg (2.50 lbs)
• Power Requirements: None (manual mechanical reloading tool)

Who is the Redding 58111 Competition Neck Die Set For 223 Remington for?

• Target Rifle and Service Rifle competitors — requires seating depth adjustments calibrated in 0.001" increments on a dedicated competition neck die set for .223 Remington (.224" bullet diameter) cases to tune bullet jump for maximum match accuracy in bolt-action rifles.
• Precision Rifle Series (PRS) shooters — benefits from the standard 7/8"-14 press threading and sliding alignment sleeves of this competition neck die set to minimise runout and maintain uniform neck tension across high-volume match handloads.
• Varmint hunters — utilises the 0.001" micrometer seating precision and isolated neck bushing system of this .223 Remington die set to maximise long-range accuracy and extend the working life of fire-formed brass.

Less suitable for: Fire-formed brass intended for autoloading, straight-pull, pump, or lever-action actions, where neck sizing can cause chambering and extraction failures; these actions require a standard full-length sizing die or a full-length bushing die.