If he knows what he is doing they will be more consistant than the commercial ones.Get a lead furnace and the lyman book on making bullets and a few molds but becarful not to breath the fumes and make sure there is never any moisture in a mold before you pour. I make round balls [440,445,535,457],maxie balls, real bullets, ballets and bullets for 38 and 44 cal. pistols. Lee