RCBS RC Supreme Auto Prime — Automatic Priming Tool for Faster Reloading

Overview

Meet the RCBS RC Supreme Auto Prime, an automatic priming tool designed to slip into your single‑stage reloading workflow and speed up primer seating without sacrificing accuracy. It’s built to complement RCBS equipment and help keep primers clean by feeding them through a dedicated tube instead of handling them one by one. The result is a steadier priming rhythm, a more orderly bench, and more consistent primer seating across calibers. This tool is aimed at reloaders who value thoughtful design and repeatable results, without promising guaranteed timing for every batch.

How it works

The Auto Prime shifts priming from manual handling to a tube‑fed system. A dedicated tube holds up to 100 primers, feeding them to the primer pocket via a push‑bar action. This arrangement reduces direct contact with primers and minimizes disruptions from misfeeds. A built‑in safety shield protects against accidental primer discharge, adding peace of mind during routine priming. The unit supports both large and small primers and includes pickup tubes and seat plugs, so you can switch calibers with minimal fuss.

• Tube‑fed priming system speeds the process
• 100-primer capacity for longer runs
• Eliminates handling primers to reduce contamination risk
• Push‑bar operation for smooth priming
• Safety shield safeguards against accidental discharge
• Includes large and small primer pickup tubes and seat plugs

Design, ergonomics, and reliability

Ergonomic leverage and a comfortable priming motion help reduce hand fatigue during long sessions. The tube‑fed design provides a steady cadence that many reloaders find easier to manage than traditional hand priming. Expect consistent primer seating across calibers, contributing to a clean, repeatable reloading rhythm. Setup is straightforward, with the Auto Prime designed to integrate into typical RCBS single‑stage workflows without complicating other steps.

What’s included and practical benefits

Along with the Auto Prime unit, you receive large and small primer pickup tubes and primer seat plugs, ensuring you can tailor the setup to the primers you use most. The 100‑primer capacity minimizes pauses to reload primers, while the integrated safety shield adds a layer of protection. While no tool guarantees faster results in every scenario, this priming solution offers a practical path toward a smoother, more repeatable priming stage—potentially fewer interruptions, cleaner primer handling, and a more efficient reloading rhythm.

Key benefits at a glance

• Speeds priming without sacrificing consistency
• Reduces primer handling and finger oils exposure
• Supports multiple primer sizes with included accessories
• Boosts workflow efficiency in single‑stage reloading