Lyman 2500 Pro-Magnum Auto-Flo Tumbler

The Lyman 2500 Pro-Magnum Auto-Flo Tumbler is a high-capacity brass tumbler designed for serious handloaders, competitive shooters, and ammunition manufacturers who require efficient case processing. This vibratory tumbler effectively addresses the preprocessing phase in reloading by removing spent primer residue, corrosion, and contaminants from fired brass before resizing and repriming.

With a 2500-grain capacity, it significantly reduces the time spent on manual cleaning, allowing operators to process larger batches between range sessions. The Auto-Flo design features Lyman's proprietary vibratory mechanism, which circulates tumbling media and brass cases through the chamber in a continuous motion, maximizing contact between media and case surfaces while preventing over-polishing or damage.

This tumbler is ideal for competitive reloaders processing various cartridges, including 9mm, .45 ACP, and .223 Rem. The Pro-Magnum platform includes an auto-shutoff timer for hands-free operation, typically requiring 45–90 minutes for a full load depending on brass condition.