i have found laying them out on the driveway and giving the kids a hammer works the best... i usually only smelt them in a small 4# lee pot, as their is only a few handfuls of them. i made a small wire basket that fits inside of the 4# pot. after i get about 1" of molten lead i lower basket in and toss in a handful of TMJ's.. after they melt i shake the basket a few times and all the lead comes out. I used to have some lead stay in the jacket not anymore.