Lee Auto-Drum Powder Measure Model 90811
Case-actuated automatic powder measure for progressive presses. Includes two adjustable drums for handgun and rifle loads, metering 1-80 grains. Features elastomer wiper, quick-change hopper, and double-charge disconnector.
Lee Auto-Drum Powder Measure
The Lee Auto-Drum represents a significant advancement in automated powder dispensing for the reloading press. This case-actuated measure eliminates the uncertainty of manual powder charging while maintaining the precision required for consistent ammunition.
Key Features
- Case-Actuated Operation: Automatically dispenses powder as each case enters the measure—no manual manipulation required
- Dual Adjustable Drums: Two infinitely variable drums included, one optimized for handgun powders and one for rifle powders
- Charge Range: Accurately meters loads from 1 to 80 grains across all powder types
- Elastomer Wiper: Exclusive design prevents powder shearing and works exceptionally well with difficult-to-meter extruded powders
- Precision Construction: Machined body with labyrinth groove mates to precision-molded nylon drums for a leak-free fit
- Gear-Driven Accuracy: Steel sector and pinion gear train ensures consistent drum rotation and charge delivery
- Quick-Change Hopper: On/off valve allows rapid powder changes without disassembly
- Double-Charge Disconnector: Reduces the risk of double charges on progressive presses (requires fixed tool head or turret)
- Swivel Adapter: Facilitates quick repositioning of the measure on your press
Design Philosophy
The Auto-Drum combines modern engineering with proven reliability. All internal mechanisms—gears, springs, and levers—are housed within a die-cast body, protecting them from powder dust and debris while maintaining easy access for maintenance.
This measure is ideal for reloaders seeking to increase production speed without sacrificing accuracy or safety.
