The dirty part is melting the wheel weights into clean ingots, after that if your careful and neat its simply a matter of learning the tricks to makeing good shot. It usally takes me about five hours to melt the weights into ingots about four hundred lbs.Then I make about three hundred and fifty lbs. of shot in eight hrs.then it;s sized and any junk is removed by running it through a sifter after that it must be dryed and bagged, I sometimes add powderd graphite though it doesn;t seem to make a differnce with or without.So if you got some time on your hands you can make some pretty good fair priced shot and have some fun doing it. Good Luck