The Redding .224 Valkyrie Neck Sizing Die (MPN: 81387) is a precision reloading tool engineered to resize only the neck of fire-formed cartridge brass while preserving the fire-formed dimensions of the case body and shoulder. Machined from heat-treated alloy steel on precision CNC lathes, this die mounts into standard reloading presses via industry-standard 7/8"-14 TPI threads. By leaving the case body untouched, the die prevents unnecessary brass work-hardening, extends overall case life, and maintains tight chamber concentricity for cartridges returned to the same rifle chamber.

• Targeted Neck Resizing: Sizes the neck to restore proper bullet tension on 0.224 in (5.7 mm) diameter projectiles while leaving the fire-formed shoulder and body geometry unchanged.
• Integrated Decapping Assembly: Includes a complete decapping rod assembly (#32223), decapping pin (#01060), and size button (#39223) to deprime spent primers and expand internal neck diameters in a single press stroke.
• Precision Construction: Manufactured from heat-treated alloy steel to maintain strict internal tolerances under repetitive reloading cycles.
• Standard Press Mounting: Uses standard 7/8"-14 TPI threads and includes a standard 7/8"-14 lock ring (#01016) for secure lockup on single-stage and turret presses.

Specifications

• Calibre: .224 Valkyrie
• Bullet Diameter Compatibility: 0.224 in / 5.7 mm
• Die Thread Standard: 7/8"-14 TPI
• Compatible Shellholder: Redding #5 (Standard #11005 / Competition #11605)
• Material: Heat-treated alloy steel
• Package Weight: Approximately 0.3 kg (0.6–0.7 lbs)
• Operation: Manual reloading press operation (non-powered)

Who is the Redding 224 Valkyrie Neck Die for?

• Bolt-action precision shooters — relies on the dedicated .224 Valkyrie neck sizing die to size only the neck for 0.224 in (5.7 mm) bullets, preserving fire-formed case dimensions for maximum concentricity in a single dedicated rifle chamber.
• Benchrest competitors — utilises standard 7/8"-14 TPI press threading and Redding #5 shellholder compatibility to deprime and neck-size .224 Valkyrie brass without working the case shoulder, extending brass life across multiple match firings.
• Varmint hunters — uses this .224 Valkyrie neck die on standard 7/8"-14 TPI presses to process fire-formed 0.224 in (5.7 mm) cartridge brass efficiently for repeated field use in bolt-action rifles.

Less suitable for: Semi-automatic (such as AR-15 platforms), pump-action, or lever-action rifles, where neck-sized brass causes chambering and primary extraction failures; these actions require a full-length sizing die. It is also unsuitable for brass that has undergone 3 to 5 firing cycles and developed shoulder growth causing tight bolt closure, which requires a dedicated body die or full-length die, or for reloaders requiring custom neck tension adjustments without an expander ball, who require a bushing-style neck sizing die.