The Redding Premium Handgun Expander Die has a unique series of processes it provides as it travels into the case itself making it stand apart from the crowd. First a radius on its base eases entry into the case mouth. Next a parallel expander section expands and true's the case internally to create a perfect bearing surface for the bullet as it is seated. This also adds a more uniform bullet pull and start preassure as well. Next is a small step to properly align the bullet with the centerline of the cartridge case. This positions the bullet for proper contact with the seating micrometer, adding uniformity during the actual seating process. Lastly, a flare to further open the case mouth when using cast bullets so they do not shave lead during the seating process.