The Hornady Quick Change Powder Die Powder Through Expanders are for use in conjunction with the Hornady Case Activated Powder Drop and Quick Change Powder Die. The expanders were redesigned to work with both lead cast bullets and copper plated bullets to allow reloaders to change cases while expanding the case mouth. The Powder Through Expander Linkage is designed to be adjustable and work with the powder measure. This linkage allows the reloader to adjust the depth of their Powder Through Expander to control how much belling will be achieved on case mouth.