The ChargeMaster Supreme Electronic Powder Dispenser delivers the accuracy needed and adds Bluetooth technology for streamlined performance. The RCBS Chargemaster Supreme is an innovative powder dispenser that combines the best features of previous Chargemaster models with cutting-edge technology to deliver the best measuring experience available. This powerful and accurate powder dispenser is designed to streamline the reloading process and deliver consistent and precise powder measurements every time. The Chargemaster Supreme features refinements that improve accuracy to 0.1-grain delivering the highest levels of precision possible. This powerful powder dispenser also features RCBS’s proprietary “Powder Learn Process ” which optimizes and calibrates the dispenser’s performance to ensure the most accurate and consistent measurements possible. Using the ChargeMaster Supreme Electronic Powder Dispenser is easy and straightforward. Simply set the desired powder weight and let the dispenser do the rest. The dispenser provides a highly accurate and consistent powder drop for each case ensuring that reloaders get the same accurate measurements every time.