For higher-volume reloading and casting many people prefer the Lee Truncated Cone Pistol Mould (Handles/Lube Sold Separately) – 6 Cavity. This mould works great for ammunition for a 9mm Ruger .45 Colt and other pistols and also comes in a variety of diameters.
The aluminum construction is one of the top selling points because it is a lightweight material that reduces fatigue on the bullet caster it heats and cools a lot faster than iron or steel moulds do and it resists rust. This mould also ensures round bullets of correct size because of the crimped block halves.