The Hornady Custom Grade New Dimension Full Length Sizing Die (.223 Remington) is a precision-machined, heat-treated steel reloading tool engineered to restore fired cartridge cases to SAAMI factory external dimensions while simultaneously decapping spent primers. Built on industry-standard 7/8"-14 threads, this mechanical die integrates directly into standard single-stage or progressive reloading presses. It features Hornady's Zip Spindle design, an elliptical expander, and a Sure-Loc lock ring to maintain precise case headspace, smooth out neck expansion, and prevent slippage during full-length resizing operations.

Key Features

• Full-Length Resizing and Decapping: Returns fired .223 Remington cartridge cases to factory exterior specifications and punches out spent primers in a single downward ram stroke.
• Zip Spindle System: Employs light, incremental threads on the spindle and collet to eliminate slippage during primer removal and enable fine spindle height adjustment.
• Elliptical Expander Button: Polished elliptical design reduces friction, neck stretch, and internal brass working as the expander exits the case neck.
• Sure-Loc Lock Ring: Clamps evenly around the die's 7/8"-14 exterior threads to secure the depth setting without marring or cutting into the steel.
• Precision Steel Construction: Heat-treated and polished steel construction delivers consistent internal clearances across repeated manual reloading cycles.

Specifications

• Cartridge Compatibility: .223 Remington / 5.56 NATO (.224 in bullet diameter)
• Press Thread Pitch: 7/8"-14 standard thread
• Required Shellholder: Hornady Shellholder #16 (sold separately)
• Operation Type: Manual mechanical handloading die
• Packaged Weight: Approximately 0.25 kg to 0.35 kg

Who is the Hornady 223 Rem Full Length Die for?

• Reloaders processing mixed .223 Remington brass — Restores mixed-source brass to factory external dimensions on standard 7/8"-14 thread presses, ensuring dependable case feeding and extraction across bolt-action and semi-automatic platforms.
• Pest control and hunting shooters — Delivers uniform chamber cycling for high-frequency field rifles firing .224 in bullet diameter cartridges, preventing chamber-binding issues common with fire-formed cases.

Less suitable for: Handloaders seeking to resize other .22-calibre cartridges such as the .22-250 Remington, .222 Remington, or .224 Valkyrie, which require dedicated calibre-specific sizing dies, or those reloading fired cases without dedicated case lubricant, which requires a pre-lubrication setup to avoid stuck cases.