This gun shoots cast bullets without special mods. What I mean about setting up this 1911 for cast bullets is that this gun is sighted in specifically for my cast bullet load. This is the only 1911 that I shoot cast bullets in. My other .45 ACP 1911s are carry guns that are sighted for bFederal Hydra Shok 230-grain hollowpoints. My handloads for those guns use plated bullets and are loaded to duplicate Hydra Shok velocity.