The Hornady Lock-N-Load Large Primer Tube (MPN: 050004) is a dedicated feed tube designed to supply large primers directly into the Positive Priming System on compatible Hornady single-stage reloading presses. Measuring 9 inches (approximately 22.86 cm) in length, this mechanical metal tube allows reloaders to stage an entire sleeve of primers without manual handling, preventing skin oils and contaminants from contacting the priming compound.

Key Features

• Direct Pickup Capability: Features a flexible pickup tip mechanism designed to press over properly oriented primers in a turning tray for rapid, hands-off loading.
• Standard Batch Capacity: Holds up to 100 large primers, accommodating a full standard consumer primer sleeve in a single loading cycle.
• Contamination Protection: Eliminates direct skin contact with primers, preventing oil and moisture transfer that can cause firearm misfires.
• Mechanical Retention: Includes a retention cotter pin to hold primers securely inside the rigid metal feed tube body until staged in the press.
• Automated Feed Delivery: Interfaces with single-stage priming systems to deliver continuous, uninterrupted primer feeding during case preparation.

Specifications

• Manufacturer Part Number: 050004 (50004)
• Product Type: Large primer feed tube
• Length: 9 inches (~22.86 cm)
• Internal Bore Size: Large primer bore (compatible with standard ~0.210-inch diameter primers)
• Total Capacity: Approximately 100 large primers
• Construction: Rigid metal tube with flexible pickup tip and retention cotter pin
• Power Requirements: None (manual/mechanical operation)
• System Compatibility: Requires the Hornady Automatic Primer Feed attachment (Item #070905) for the Lock-N-Load Classic Single-Stage Press and legacy Hornady 007 Auto Prime Press

Who is the Hornady Large Primer Tube for Lock-N-Load Classic Press for?

• Handloaders using Hornady Lock-N-Load Classic presses — integrates directly with the press's single-stage automatic priming assembly using a 9-inch rigid metal body that stages primers automatically into the priming arm.
• Reloaders processing large rifle or large pistol brass — holds a full capacity of 100 large primers (~0.210-inch diameter) in this large primer tube to enable uninterrupted priming runs from a single standard tray.

Less suitable for: Reloaders seating small rifle or small pistol primers (~0.175-inch diameter), which fail to feed reliably in this wide bore and require a dedicated small primer tube, or those without the Automatic Primer Feed attachment (Item #070905) who require a handheld or benchtop tray-fed priming tool instead.