Die sets for straight wall cases consist of three dies, as resizing and neck expansion for proper bullet fit cannot be accomplished in a single operation. The full-length (FL) resizing die includes a decapping rod assembly, which removes the spent primer from the case. The expander die (EXP) features a neck expanding plug, ensuring the correct diameter for proper bullet seating. The seating die (ST) is equipped with a bullet guide, built-in crimp ring and the appropriate seating plug, allowing for precise bullet placement and crimping. These three dies work together to ensure reliable, accurate reloading for straight wall cases.