The RCBS Automatic Bench Priming Tool is a dedicated, bench-mounted solution designed to provide reloaders with maximum feel and consistency when seating primers. For those who find the priming systems integrated into reloading presses to be clumsy or lacking in feedback, the RCBS Automatic Bench Priming Tool offers a specialized alternative that separates the priming operation from the main press. By mounting directly to the bench, it allows the reloader to focus entirely on the delicate “crush” of the primer, ensuring each one is seated to the perfect depth.
- Tool Category: Bench-Mounted Priming Tool
- Operation Type: Manual Lever with Gravity Feed
- Mechanical Standout: Single-Stage Leverage with Tube-Fed Automation
Best For: Precision-oriented reloaders who prefer a separate priming station to ensure consistent seating depth and maximum tactile feedback without the fatigue of handheld tools.
Technical Specifications & Market Pricing
The RCBS Automatic Bench Priming Tool is built for longevity and stability, utilizing a heavy-duty casting that eliminates the flex often found in plastic or handheld priming units.
| Field | Value |
| Model | RCBS Automatic Bench Priming Tool |
| MPN | 09460 |
| Materials | Cast Aluminum and Steel |
| Weight (lbs) | 1.8 lbs |
| MSRP | $124.99 |
| Approx. Street Price | $105.00-115.00 |
Pricing Analysis
The RCBS Automatic Bench Priming Tool sits in the mid-to-high price tier for dedicated priming tools. While more expensive than basic handheld units, it is considered a lifetime investment due to its rugged construction. Unlike the Lee Auto Bench Priming Tool, which uses plastic trays, the RCBS Automatic Bench Priming Tool utilizes metal primer tubes, providing a higher level of safety and durability for high-volume sessions.
Build Quality, Materials, and Ergonomics
The primary appeal of the RCBS Automatic Bench Priming Tool is its robust build quality. The main body is a heavy casting that provides a rock-solid foundation when bolted to a reloading bench. This rigidity is essential for “tactile feel,” allowing the user to sense the primer hitting the bottom of the primer pocket.
Ergonomics and Mechanical Advantage
The tool features a long, comfortable handle that provides significant mechanical advantage. This design allows the reloader to seat primers into tough military brass – such as 7.62×51 NATO – with minimal physical effort. Unlike handheld tools that can cause hand cramping after 100 rounds, the RCBS Automatic Bench Priming Tool uses the larger muscles of the arm and shoulder, making it ideal for processing hundreds of pieces of brass in a single sitting.
The ergonomics are further enhanced by the vertical orientation of the handle. The downward stroke is natural and allows for a high degree of control, which is vital when using sensitive primers like the Federal GM210M where over-seating can lead to ignition issues or damaged anvils.
Comprehensive Setup, Calibration, and Operation
Setup and Assembly
- Bench Mounting: The unit should be bolted to a solid bench or a tool plate. It requires two bolts (not included) for maximum stability.
- Tube Selection: The RCBS Automatic Bench Priming Tool comes with both large and small priming tubes and seating assemblies. Select the one appropriate for your brass (e.g., small for 6.5 Creedmoor with small primer pockets, or large for 30-06 Springfield).
- Primer Loading: Fill the primer tube using a pick-up tube or an automated filler like the Frankford Arsenal Vibra-Prime Automatic Primer Tube Filler.
Operation Protocol
Once the tube is loaded and the safety shield is in place, the operation is straightforward. Place a piece of brass into the shellholder. As you lift the handle, a primer is fed from the tube into the seating position via gravity. Pushing the handle forward/downward seats the primer into the pocket. The design ensures that primers stay oriented correctly, anvil-side up, as they move from the tube to the cup.
Maintenance and Longevity
- Lubrication: Occasionally apply a drop of light oil to the handle pivot pins to keep the stroke smooth.
- Cleaning: Periodically check the primer seating cup for debris or primer dust. A build-up of lead styphnate can interfere with seating depth consistency.
Internal Brand Hierarchy
RCBS offers a variety of priming solutions, and the RCBS Automatic Bench Priming Tool serves as their premium stationary manual option.
- The Handheld Tier: The RCBS Hand Priming Tool and RCBS Universal Hand Priming Tool are portable but offer less leverage.
- The Specialty Tier: The RCBS Ram Priming Unit uses your existing press’s leverage but is a single-feed system.
- The Professional Tier: The RCBS Automatic Bench Priming Tool is the fastest manual option, utilizing a tube-feed system to eliminate the need to handle individual primers.
Competitive Market Analysis
The RCBS Automatic Bench Priming Tool competes with other high-end bench-mounted units.
1. Forster Co-Ax Bench Priming Tool
The Forster Co-Ax Bench Priming Tool is the most direct rival. It is famous for its “universal” shellholder jaw system that requires no individual shellholders. While the Forster is often praised for its precision, the RCBS Automatic Bench Priming Tool is generally considered faster for batch processing due to its simpler handle stroke.
2. Lyman Accu-Prime Auto-Load Bench Priming Tool
The Lyman Accu-Prime Auto-Load Bench Priming Tool offers a similar tube-fed bench experience. It is often slightly more affordable but utilizes a different tray-to-tube transition. Many reloaders prefer the RCBS for its overall weight and “industrial” feel.
3. Lee Auto Bench Priming Tool
The Lee Auto Bench Priming Tool is the budget-friendly competitor. It uses a plastic tray instead of tubes. While the Lee is very fast and efficient, it does not offer the same heavy-metal durability or the specific safety of a primer tube shield found on the RCBS Automatic Bench Priming Tool.
4. Hornady Versa-Prime Bench Priming Tool
The Hornady Versa-Prime Bench Priming Tool is another solid bench option. It uses a different leverage geometry that some find more comfortable for long sessions. However, the RCBS Automatic Bench Priming Tool remains the classic choice for those who already use the RCBS “Green” ecosystem.
Comparison Table
| Feature | RCBS Auto Bench | Forster Co-Ax | Lyman Accu-Prime | Lee Auto Bench |
| Material | Cast Aluminum | Cast Iron/Steel | Cast Aluminum | Cast Aluminum/Polymer |
| Feed System | Tube/Gravity | Tube/Gravity | Tray to Tube | Tray |
| Shellholders | Standard RCBS | Universal Jaws | Standard | Specific Lee |
| Price Class | Mid-Range ($110) | Premium ($130) | Mid-Range ($90) | Budget ($45) |
Real-World Feedback & Troubleshooting
The RCBS Automatic Bench Priming Tool is a favorite among precision rifle shooters who load cartridges like 308 Winchester and 6.5 PRC.
Pros
- Exceptional tactile feedback – you can feel exactly when the primer seats.
- All-metal construction ensures a tool that can be passed down to the next generation.
- Large primer capacity via the tube system speeds up the workflow.
Cons
- Requires shellholders (though most reloaders already have these for their press).
- Changing from Small to Large primers takes a few minutes of disassembly.
Troubleshooting: 3 Known Technical Quirks
- Primer “Flip” in the Tube: If the tube is not perfectly vertical, a primer like the CCI 450 can occasionally flip. Workaround: Ensure the tool is mounted perfectly level on the bench.
- Seating Depth Variance: If the shellholder is not fully snapped into the slot, seating depth can vary. Workaround: Always ensure the shellholder is fully seated and the retaining spring is holding it tight.
- Gravity Feed Interruptions: Primer dust can sometimes slow the gravity feed. Workaround: Periodically run a dry pipe cleaner through the primer tubes to remove any lead residue.
FAQ
Q: Does it come with both Large and Small primer setups?
A: Yes, the RCBS Automatic Bench Priming Tool includes everything needed for both sizes, including tubes and seating cups.
Q: Can I use Hornady shellholders with this tool?
A: Yes, it accepts most standard-style shellholders, though RCBS shellholders are the recommended fit.
Q: Is it faster than a hand priming tool?
A: For most users, yes. The tube-feed system and the lack of hand fatigue allow for a much faster overall pace.
Q: How do I fill the tubes?
A: You can use a manual pick-up tube or an automated filler like the Dillon Precision RF100 Auto Primer Filler Assembly.
Q: Does it work with the 300 Blackout?
A: Yes, it is compatible with any caliber that uses standard small or large rifle/pistol primers.
Q: Can I mount this to a portable stand?
A: Yes, many reloaders mount the RCBS Automatic Bench Priming Tool to a piece of lumber and then C-clamp it to their bench for temporary use.
Q: Does it have a safety shield?
A: Yes, it features a heavy-duty steel tube that acts as a blast shield in the unlikely event of a primer detonation.
Conclusion & Expert Verdict
The RCBS Automatic Bench Priming Tool remains a cornerstone of the precision reloading bench. It successfully bridges the gap between the speed of a progressive press and the meticulous control of a single-stage process. While modern hand tools have improved, they cannot match the mechanical advantage and bench stability provided by this unit. For anyone serious about long-range accuracy and consistency, this tool is an essential acquisition.
Expert Pro Tip: When seating primers, apply a slow, steady pressure until you feel the primer “bottom out.” Avoid a “snapping” motion, as this can crush the primer mix too aggressively and potentially cause ignition variance in high-precision rounds like the 6mm ARC.
