The Redding 6.5/284 Winchester Competition Neck Die Set (manufacturer model 58415) is a precision 3-die workshop tool designed for sizing and seating 6.5-284 Winchester (Norma) ammunition. Engineered for standard 7/8"-14 threaded reloading presses, this mechanical system minimises cartridge runout using tightly toleranced internal sliding sleeves that support and align the case before sizing or seating begins. The 3-piece set includes a micrometer-adjustable Competition Bushing Neck Sizing Die, a dedicated Body Die for resetting case body dimensions and bumping shoulders without touching the neck, and a micrometer-controlled Competition Bullet Seating Die.

Key Features

• Modular 3-Die Configuration: Includes a Competition Bushing Neck Sizing Die, a Body Die for shoulder bumping fire-formed cases, and a Competition Seating Die.
• Spring-Loaded Alignment Sleeve: Fully supports the cartridge case prior to sizing, allowing interchangeable bushings to self-centre along the case neck axis to eliminate runout.
• Micrometer Neck Adjustment: Top-mounted micrometer provides precise control over bushing position for full or partial case neck sizing.
• Micrometer Bullet Seating: Offers direct, non-click bullet depth adjustment in exact 0.001" increments for precise projectile seating.
• Standard Thread Interface: Standard 7/8"-14 threading fits all standard single-stage and turret reloading presses without proprietary adaptors.

Specifications

• Calibre: 6.5-284 Winchester / 6.5-284 Norma
• Bullet Diameter Compatibility: 0.264"
• Die Threading: 7/8"-14
• Seating Adjustments: 0.001" graduations
• Recommended Bushing Range: 0.286" to 0.294" (bushings sold separately)
• Shellholder Compatibility: Redding Shellholder #1 or Competition Shellholder #1 (sold separately)
• Packaged Weight: Approximately 0.55 kg to 0.7 kg (1.2–1.5 lbs)
• Operation: Manual, mechanical workshop tooling (unpowered)

Who is the Redding 6.5/284 Winchester Competition Neck Die Set for?

• F-Class competitive shooters — achieves consistent seating depths and minimal neck runout using 0.001" micrometer graduations on the seating die to match the tight tolerances required for 0.264" bullet diameter match projectiles.
• Benchrest precision reloaders — enables precise control over case neck tension by accommodating sizing bushings between 0.286" and 0.294" in a dedicated 6.5-284 reloading die set that maintains concentricity on fire-formed brass.
• Long-range handloaders — provides the ability to selectively bump shoulders and size body walls with the included body die while mounting directly to any standard 7/8"-14 threaded reloading press.

Less suitable for: Semi-automatic rifle setups where neck-sized cases will not cycle reliably, or reloaders using heavily compressed powder charges that exceed the structural threshold of the floating micrometer seating stem; standard full-length sizing die sets with rigid seating stems are better suited for these applications.