Reloading dies can be purchased from stores such as MidwayUSA. The company sells a wide range of dies and other types of supplies.
Lyman is another company that sells reloading dies. The dies have different functions, including to expand the cartridge in a firearm. The dies also come in different sizes and come in two and three die sets. The stores that carry reloading dies also often carry other accessories, such as turret presses and entire reloading packages. The exact price of the dies and other accessories varies greatly depending on the amount, the brand and the exact item purchased from the company.