The Hornady Lock-N-Load Iron Press Auto Prime System Upgrade (MPN: 085570) converts a standalone Hornady Iron Press single-stage reloading press into an automated on-press priming station. Operating via a 100% mechanical, gravity-fed shuttle mechanism, the system slides a fresh primer over the seating punch as the press ram cycles, eliminating the need to handle individual primers by hand. This design prevents skin oils and moisture from contaminating the priming compound while streamlining case preparation and reloading workflows.

Key Features

• Gravity-Fed Shuttle Mechanism: Automatically advances a single primer into alignment with the seater punch during the ram cycle, requiring no external power or electrical connection.
• Complete Dual-Size Tooling: Includes dedicated feed tubes, pick-up tubes, and punches/cups to support both standard Small and Large Boxer primers across rifle and pistol calibres.
• Contamination Protection: Eliminates direct finger contact with primers to prevent moisture and oil degradation of the compound.
• Flush Benchtop Integration: Mounts flush to the deck and frame of the Lock-N-Load Iron Press using the supplied mounting hardware and primer catch tray.

Product Specifications

• Brand: Hornady
• Model / MPN: 085570
• Category: Reloading press primer upgrade kit
• Weight: Approximately 1.62 lbs (shipping weight)
• Magazine Tube Capacity: Up to 100 primers (standard primer sleeve capacity)
• Operation: Mechanical gravity feed (non-powered)
• Primer Compatibility: Small and Large standard Boxer primers (rifle and pistol; incompatible with .50 BMG or Berdan primers)
• Press Compatibility: Exclusively fits the Hornady Lock-N-Load Iron Press (does not fit standard Classic presses, progressive presses, or competitor frames)
• Included Components: Mounting base, primer shuttle, housing tubes, shuttle springs, primer catch tray, large and small press primer feed tubes, large and small primer pick-up tubes, large and small primer punches/cups, primer follower, and mounting hardware

Who is the Hornady Lock N Load Iron Press Auto Prime System Upgrade for?

• Hornady Lock-N-Load Iron Press owners reloading small to medium batches — Integrates directly onto the Iron Press frame as a dedicated 1.62 lbs reloading press primer upgrade kit, feeding cases continuously from a 100-primer capacity tube without altering the single-stage workflow.
• Handloaders seeking to avoid touching primers with fingers — Isolates primer handling entirely within the enclosed pick-up and feed tubes, utilizing the 100-primer capacity system to seat Small and Large Boxer primers without manual contact or oil contamination.

Less suitable for: High-volume reloaders processing hundreds of rounds per hour who require a multi-station progressive reloading press, or precision match shooters who require a standalone handheld priming tool to isolate tactile feedback when seating primer depths.