Die sets for straight wall cases typically consist of three dies, as it's not possible to both full-length resize and expand the neck for proper bullet seating in a single operation. The full-length (FL) resizing die features a decapping rod assembly to remove the spent primer. The expander die (EXP) includes a neck expanding plug to achieve the correct neck diameter for proper bullet fit. The seating die (ST) comes with a bullet guide, a built-in crimp ring and the appropriate seating plug to ensure precise bullet placement and secure crimping. Together, these three dies provide a complete solution for reloading straight wall cases, ensuring consistency and accuracy in the final round.