Die sets for straight wall cases typically consist of three dies to accommodate the necessary operations for resizing and bullet seating. Full-length resizing and neck expansion cannot be achieved in a single operation, making the three-die setup essential. The full-length (FL) resizing die includes a decapping rod assembly to remove the spent primer. The expander die (EXP) features a neck-expanding plug to prepare the case for proper bullet fit. The seating die (ST) is equipped with a bullet guide, built-in crimp ring and the appropriate seating plug to ensure precise bullet seating and secure crimps. This setup ensures reliable and accurate reloading for straight wall cases.