The Lee Perfect Powder Measure features a soft elastomer wiper that eliminates cut powder and jerky action. The smooth rotor operation results in incredibly uniform charges. A nylon cone shaped drum is self-lubricating so it will never bind or wear out. The micrometer adjustment reads directly in cubic centimeters. Just multiply the charge in grains by the cc for one grain and you have the setting. Works fine for charges from 2 grains to over 100 grains. Changing powder is fast and easy with the removable hopper. With the optional Universal Charging Die, the powder measure becomes case operated. Includes adapters to fit almost all cartridges.