The Dillon RL 550C will produce match-quality ammo for over 160 different rifle and pistol calibres. These kits fit the RL300, RL450, RL550 series, AT500 and BL 550 machines This kit contains: Shellplate Powder funnel Locator buttons To order choose a calibre from the drop down menu below. * Indicates that this cartridge requires use of the Extra Large Powder Die #21253, sold separately. We suggest that you also get: Dillon dies, which are designed for high speed use. If you want to leave your dies preset, you'll need: Toolhead (#13909) Powder die (#20064) OR the 550 Quick Change (#22058),which includes a powder measure, powder die, toolhead and a toolhead stand. This allows you to leave your dies and powder charge set up and dedicated to a specific cartridge for faster, easier calibre changes. For a complete breakdown of the individual parts in each calibre conversion kit please refer to this calibre Conversion Chart