The Lee Precision Double Cavity Mold is designed for muzzleloading shooters to cast their own 200-grain, .450 diameter conical bullets, which are an excellent performance upgrade for .44 caliber cap-and-ball revolvers. Machined from lightweight aluminum, the mold heats up quickly for efficient casting sessions with less fatigue than heavier steel molds. Its dual cavities allow you to produce two uniform projectiles with each pour, offering potentially improved energy and accuracy over traditional round balls. By making your own conical bullets, you can control quality and significantly reduce costs.