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Lee Precisiom
The Lee Precision Auto-Drum Powder Measure is a case-actuated powder dispenser that takes the guesswork—and the mess—out of charge drops. Whether you're loading rifle rounds on a single-stage press or running a progressive setup, this measure automatically meters powder into each case without spilling, thanks to its robust design and intelligent actuation system. It ships with two infinitely adjustable drums, giving you the flexibility to handle powder charges from 1 to 80 grains across a wide range of cartridges and powder types.
Built around a machined body and precision-molded nylon drums, the Auto-Drum uses a steel sector and pinion gear train to deliver reliable, repeatable charges. The exclusive elastomer wiper is engineered to prevent powder shearing, which means it meters difficult extruding powders—the ones that can jam up cheaper measures—without choking. A labyrinth groove seals the interface between body and drum, eliminating powder leakage and keeping your bench clean and your loads consistent.
If you run a progressive press with a fixed turret or tool head, the integrated double-charge disconnector adds a safety layer against the dreaded double charge. The quick-change hopper lets you swap powders without breaking down the whole measure, and the swivel adapter makes repositioning fast. All moving parts—gears, springs, levers—sit inside the die-cast housing, protected from dust and debris and presented in a modern, functional design.
| Brand | Lee Precision |
| Model | 90811 |
| Type | Auto-Drum Powder Measure (Case-Actuated) |
| Charge Range | 1 to 80 grains |
| Drums Included | 2 (Universal Large/Small) |
| Adjustment | Infinitely Adjustable |
| Actuation | Case-Actuated |
| Primary Materials | Machined Body, Precision-Molded Nylon Drums, Die-Cast Housing, Steel Gears |
| Safety Features | Elastomer Wiper (Powder Shearing Prevention), Double-Charge Disconnector, Labyrinth Seal Groove |
Yes. The Auto-Drum is compatible with progressive presses, and the double-charge disconnector is available as a safety feature. However, to use the double-charge disconnector, your press must have a fixed tool head or turret.
The Auto-Drum handles both ball and extruded powders. The exclusive elastomer wiper is designed specifically to prevent powder shearing with difficult metering extruded powders that can jam up other measures.
The quick-change hopper features an on/off valve that lets you quickly swap powders without breaking down the entire measure.
The Lee Precision 90811 comes with the Auto-Drum Powder Measure body and two universal drums (large/small) that are infinitely adjustable for any charge weight from 1 to 80 grains.
Lee Precisiom
The Lee Precision Auto-Drum Powder Measure is a case-actuated powder dispenser that takes the guesswork—and the mess—out of charge drops. Whether you're loading rifle rounds on a single-stage press or running a progressive setup, this measure automatically meters powder into each case without spilling, thanks to its robust design and intelligent actuation system. It ships with two infinitely adjustable drums, giving you the flexibility to handle powder charges from 1 to 80 grains across a wide range of cartridges and powder types.
Built around a machined body and precision-molded nylon drums, the Auto-Drum uses a steel sector and pinion gear train to deliver reliable, repeatable charges. The exclusive elastomer wiper is engineered to prevent powder shearing, which means it meters difficult extruding powders—the ones that can jam up cheaper measures—without choking. A labyrinth groove seals the interface between body and drum, eliminating powder leakage and keeping your bench clean and your loads consistent.
If you run a progressive press with a fixed turret or tool head, the integrated double-charge disconnector adds a safety layer against the dreaded double charge. The quick-change hopper lets you swap powders without breaking down the whole measure, and the swivel adapter makes repositioning fast. All moving parts—gears, springs, levers—sit inside the die-cast housing, protected from dust and debris and presented in a modern, functional design.
| Brand | Lee Precision |
| Model | 90811 |
| Type | Auto-Drum Powder Measure (Case-Actuated) |
| Charge Range | 1 to 80 grains |
| Drums Included | 2 (Universal Large/Small) |
| Adjustment | Infinitely Adjustable |
| Actuation | Case-Actuated |
| Primary Materials | Machined Body, Precision-Molded Nylon Drums, Die-Cast Housing, Steel Gears |
| Safety Features | Elastomer Wiper (Powder Shearing Prevention), Double-Charge Disconnector, Labyrinth Seal Groove |
Yes. The Auto-Drum is compatible with progressive presses, and the double-charge disconnector is available as a safety feature. However, to use the double-charge disconnector, your press must have a fixed tool head or turret.
The Auto-Drum handles both ball and extruded powders. The exclusive elastomer wiper is designed specifically to prevent powder shearing with difficult metering extruded powders that can jam up other measures.
The quick-change hopper features an on/off valve that lets you quickly swap powders without breaking down the entire measure.
The Lee Precision 90811 comes with the Auto-Drum Powder Measure body and two universal drums (large/small) that are infinitely adjustable for any charge weight from 1 to 80 grains.
