The Uniflow-III Powder Measure is the most accurate Uniflow that RCBS has ever produced. The UPM-III 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-III changes easily from charge to charge of the same powder type without having to empty the powder hopper. The NG resistant anti-static hopper is large enough to hold 1lb of extruded powder or A 1/2 pound of flake powder for extended reloading sessions. New on the UPM-III is the ability to use one metering cylinder and rotor f Mfg: Rcbs