Trapper44: For the round balls you need, I agree with the others. The two cavity should be just fine. I will say the Lee six cavity moulds are a pleasure to run. Once they are up to temp you get a lot of bullets in a hurry. As to cost, most of the two cavity moulds I own (Noe,Accurate, LBT and others) cost over twice as much as the Lee six cavity moulds. I cast up a batch of 311-93s just last night with a Lee six and enjoyed how well it worked. Gp