The Mec Size Master is a comprehensive, single-stage reloader designed to provide simplicity and efficiency while maintaining precision. It is equipped with premium features such as the E-Z prime automatic primer feed and the power ring collet resizer, which restores every base to factory specifications. The advanced resizing station is capable of handling both brass and steel heads, accommodating high and low base configurations. Streamlined design that optimizes user convenience and operational efficiency without compromise Single-stage reloader designed for efficient, streamlined operation, ensuring rapid and effortless reloading with minimal user exertion Incorporates a precision power ring collet re-sizer that restores each base to factory specifications The resizing station is engineered to accommodate both high and low base configurations of brass or steel heads, ensuring versatile and efficient processing capabilities Optimize throughput by achieving a loading rate of 4 to 6 boxes per hour The E-Z prime automatic primer feed is included as a standard feature to automatically dispense primers Configurable for 3 inches shells