Hornady's all-metal Blackpowder measure features a non-sparking aluminum hopper and brass metering system. Designed specifically to meet the safety needs when working with blackpowder. Smooth tolerances between the frame and drum provide for smooth operation with course black powder. The brass metering system adjusts from 10 to 50 grains in five (5) grain increments, and from 50 to 130 grains in ten (10 grain increments when using FFG blackpowder. Other sizes of blackpowder, Pyrodes, and Triple 7 will drop differently amounts. Always confirm charge weight.