This powder measure dispenses charge after charge of powder with consistent accuracy to a fraction of a grain. The key to unfailing precision is the 55’s unique three slide adjustable cavity. Extra fine adjustments of width and depth provide consistent charges with almost any powder. A 2400 grain reservoir resists chemical action and protects your powder from harmful light rays. An attached knocker assures a complete charge every time. Mount the 55 on your bench or any turret press. No funnel is required. Includes a 7/8" x 14 thread adapter for press or stand mounting.