Lyman Accu-Prime Auto-Load Features The Lyman Accu-Prime Auto-Load is built around a patented adjustable priming punch that stops against the bottom surface of the case rather than relying on rim thickness which many other priming tools use and which introduces inconsistency into primer seating depth. Because the punch references the case base directly reloaders get fully controllable precise primer depth regardless of variations in rim thickness across different brass lots. This design delivers top seating accuracy that feel-based tools or simple stop-based tools cannot consistently match. The result is a cartridge primed to the exact same depth every time which matters for ignition consistency and safety. A unique linear rail system operates the primer feed tubes producing an extremely smooth feed operation and consistent primer drop into the seating position. The tool is run with a side handle connected to a slick camming system making the seating stroke smooth and controlled rather than abrupt. It works with standard shellholders from any brand so reloaders do not need proprietary accessories to use it across their existing die sets. This bench-mounted tool suits reloaders who prime in volume and want speed without sacrificing the seating precision that hand priming tools often lack. Lyman Accu-Prime Auto-Load Specifications Manufacturer: Lyman Model: Accu-Prime Auto-Load Type: Bench Priming Tool Reloading Case Prep Type: Primer Material: Metal/Plastic Shellholder Compatibility: Standard Press Shellholders Available At: GrabAGun