There are some classic firearms that require unique ammunition that are no longer sold by non-speciality firearms retailers. One of the only ways to create classic ammunition for firearms like classic Colt Model percussion revolvers is to cast your own ammunition. We carry bullet molds that make the process of casting lead .31C bullets by yourself as easy as possible. In a safe and well ventilated area, lead is liquified and poured into the mold while the user holds the mold handles securely. Once the bullets have set, they can be ejected from the mold and prepared for use. These molds can create both round and conical bullets.