Hornady Cowboy 3-Die sets have been specially designed for cowboy action and cast bullet reloaders. These die sets feature the same great benefits that Hornady dies are known for. Each set includes a Full-length sizing die, and adjustable case mouth expander die and steel seater die that is designed for working with lead bullets. This special seater helps to ensure that ammunition is loaded without deforming lead bullets. Sets come packaged in a plastic storage box and three Sure-Loc Rings, Shellholder sold separately. Notes: Seating die features seater adjustment screw, built-in crimper, locking retainer spring as well as a floating bullet seater alignment sleeve and seating stem, which pre-align the bullet and case before seating occurs.