Engineered for use with the MEC 600 Jr. series of shotshell reloaders, MEC resize rings are precision-fitted to the depriming stations and play a critical role in returning spent hulls to proper specifications. High-volume reloaders know these components can wear out or crack over time, particularly under sustained use. Additionally, when resize rings begin to fail, they may not bring hulls back to the correct size, potentially compromising the performance and reliability of reloads. Keeping spare resize rings on hand is essential for uninterrupted, efficient operation. MEC strongly recommends periodic replacement of these rings in accordance with your reloading volume to ensure optimal hull resizing consistency. If persistent resizing issues occur, especially in tight chambers, the MEC Supersizer-designed for heavy-duty resizing-offers an excellent alternative solution.