Lee Precision Full Length Sizing Die Features The Lee Precision Full Length Sizing Die for 6mm ARC is machined from steel and designed to resize the entire case body restoring fired brass to factory dimensions for reliable chambering across different rifles. Full length sizing is the standard approach for semi-auto platforms like those commonly chambered in 6mm ARC since partial or neck-only sizing can lead to chambering issues in guns that do not share the exact same chamber dimensions. Because this is a steel die rather than a carbide die resizing lubricant is required on every case to prevent sticking during the sizing stroke. Reloaders accustomed to steel dies will find the process familiar though it does add a lubrication step compared to carbide die setups. This set is not limited to just the sizing die. It also includes a bullet seating die a factory crimp die and a universal shell holder giving reloaders a complete toolkit for processing 6mm ARC ammunition from resized brass through to a finished crimped round. The factory crimp die in particular helps ensure consistent bullet pull and reliable feeding which matters in the semi-auto rifles this cartridge is often paired with. For reloaders building out a dedicated 6mm ARC reloading setup this Lee Precision die package covers the core steps needed to produce consistent ammunition on a standard reloading press. Lee Precision Full Length Sizing Die Specifications Manufacturer: Lee Precision Model: Full Length Sizing Die Caliber: 6mm ARC Die Type: Full Length Includes: Full Length Sizing Die Bullet Seating Die Factory Crimp Die Universal Shell Holder Available At: GrabAGun