For reloading and casting in high volumes the Lee Semi-Wadcutter Pistol Mould (Handles Sold Separately) - 6 Cavity is a popular option. As with other Lee moulds this one is constructed from aluminum. Although softer than blued steel aluminum offers impressive benefits.Aluminum is light so there is not as much risk for fatigue on the bullet caster it can heat up and cool down fast and it is rust resistant. In addition the block halves for this mould are CNC machined which means they produce more perfect bullets. This mould also boasts a hard anodized sprue plate with cam control.