This powder measure includes a stand to easily mount to your reloading bench. A numbered micrometer stem allows for adjusting the powder charge amount from 10-100 grains. A universal nozzle design fits cases from .22 Cal - .50 Cal. Ball bearings run on either side of the drum, providing a smooth rotation where powder is fully contained and flows without bridging. When the micrometer handle is lifted, powder dumps and then when it is pushed down the powder recharges to the specified amount.