The RCBS Quick Change High Capacity Powder Measure can dispense large rifle charges of up to 250 grains of smokeless powder. The large hopper can accommodate 2 pounds of smokeless powder, and metering assemblies change out with the pull of a pin. Extra metering assemblies can be purchased to preset for favorite charges. The drain attachment empties the powder hopper without the need to remove it from the stand or press. The unit includes one metering assembly, .22-.270 Drop tube, .30-.45 Drop Tube, .50 Drop Tube and the Quick Change High Capacity Drain Attachment. Note: Do NOT use with black powder. The Powder Measure should be used in conjunction with an accurate powder scale for setting the original charge and for checking charges occasionally during the run.