Automatic case actuated drum powder measure. Accurately and automatically dispense powder in your favorite cartridge. Two infinitely adjustable drums included. These Quick-Change drums will accurately and reliably drop charges from 1 to 80 grains of powder. FEATURES: Case actuated; never spill a charge. Exclusive elastomer wiper prevents powder shearing, works great with difficult metering extruded powders. Machined body with labyrinth groove mates to the precision molded nylon drums providing a leak free fit with the finest powders. Drum is actuated by a steel sector and pinion gear train. Quick-change hopper has on/off valve to quickly change powders Mfg: Lee Precision