In that tradition the Competition PR-50 was engineered with a sweet spot from approximately 35 to 75 grains of most powders. This new measure completes the grouping with a total of four distinct powder measures, each optimized for incredible precision within a given range of charge weights. Beyond and efficient metering chamber design, consistent charges are assured by a precision ground drum, a honed metering chamber and a unique hemispherical micrometer adjustable plunger, which virtually eliminates powder voids caused when using long grain powders. The micrometer is designed to reduce backlash in its travel making for easily repeatable charge weights as well.