The Uniflow Powder Measure is the most accurate Uniflow that RCBS has ever produced. The UPM throws consistently accurate charges reload after reload. The exacting tight tolerance allow powder to pour uniformly from the measuring cylinder and into a case, thereby eliminating the hazards of overloads caused by clogging when charges are dumped. The UPM changes easily from charge to charge of the same powder type without having to empty the powder hopper. The NG resistant anti-static threaded hopper is large enough to hold half a pound of extruded powder or one-third pound of flake powder.