Ensure precise alignment with our system. The jaws are designed to float, allowing the cartridge to naturally center itself within the die. When a case is positioned in the shell holder, it is supported by spring-loaded jaws that engage the base of the cannelure, ensuring more reliable extraction. The shell holder operates automatically; thus, when a cartridge is inserted into the die and the Co-Ax press handle is engaged, the jaws can open and close around the cartridge case. Upon raising the handle, the jaws automatically open, releasing the case. The S (standard) jaws are pre-installed at the factory and are prepared for reloading The minor diameter accommodates a rim size ranging from 0.343 inches - 0.422 inches