When using a press mounted powder measure there is no need to have a separate powder measure mounted to your bench, saving space and time. Superior engineering means our powder measure is fully loaded with features. Accuracy within +/- 1/10 of a grain (A 0.1 gr). Powder hopper capacity of 5,000 grains, and integrated powder screen to help keep out any unwanted debris. Powder baffle to ensure consistent and repeatable powder drops. Case actuated operation, with built in compliance to work with varying case lengths. The rotating barrel is built using sealed ball bearings, and oil impregnated bronze bushings on all sliding surfaces to insure smooth operation and extended life. Simple disassembly for cleaning and converting from pistol to rifle and rifle to pistol.