The Redding Competition Bushing Neck 3-Die Set (model 58114) is a precision, non-powered mechanical reloading toolset manufactured for the .243 Winchester cartridge. Engineered for fire-formed brass fired from bolt-action rifles, this three-die set focuses on controlling neck tension and maintaining concentricity across repeated reload cycles. It interfaces with standard single-stage and turret reloading presses via industry-standard 7/8"-14 threading.

Key Features:

• Competition Bushing Neck Sizing Die: Employs a sliding alignment sleeve to fully support the case prior to sizing, paired with an adjustable micrometer top to set the exact sizing length on the cartridge neck. Operates with interchangeable bushings without an expander button to minimise brass stretch.
• Dedicated Body Die: Restores clearance by full-length sizing the cartridge case body and bumping the shoulder back without touching or altering the neck dimensions.
• Competition Bullet Seating Die: Features an internal sliding alignment sleeve to hold the bullet and case coaxially, paired with a micrometer adjustable top graduated in 0.001" increments for repeatable overall cartridge length (COAL).

Specifications:

• Calibre Compatibility: .243 Winchester (.243" / 6mm projectile diameter)
• Shellholder Requirement: Standard #1 shellholder
• Thread Interface: 7/8"-14 standard thread
• Adjustment Resolution: 0.001" micrometer graduations
• Operation: Manual, mechanical press-mounted tooling
• Boxed Set Weight: Approximately 1.2–1.4 kg

Who is the Redding 243 Win Competition Neck Die Set for?

• Precision target shooters — relies on the 0.001" micrometer-graduated bullet seating die to dial in precise bullet seating depth and maintain tight concentricity when loading fire-formed .243 Winchester brass.
• PRS competitors — uses this 243 Winchester reloading die set with industry-standard 7/8"-14 threading to establish precise 0.002" magazine-fed neck tension while bumping shoulders with the dedicated body die to ensure reliable cycling in bolt-action rifles.
• Long-range varmint hunters — utilizes the bushing neck die and 0.001" increment adjustments to tailor neck tension down to 0.001" for single-loaded .243 Winchester cartridges without overworking the brass necks.

Less suitable for: Reloaders shooting wildcat chamberings like the .243 Ackley Improved, semi-automatic rifles needing full-length sizing with high neck tension (0.003"), or reloaders without separate neck bushings; these applications require dedicated Ackley Improved dies, standard full-length 2-die sets, or pre-configured dies with fixed neck dimensions.