Grumpy I was at the scrap yard yesterday and run into some clean sheet lead I think taken from an X ray room anyway it was clean lead so I thought but on the other side was some glue and drywall remnants from removing it I bought 300 pounds and melted it into cupcake pan ingots but it sure was smokey but not a whole lot of junk skimmed from the pot less than a coffee can of junk skimmed off so I suppose that I have pretty close to pure lead now that its into ingots when i melt it again should I mis it 50/50 with wheel weight ingots I have or just add some pure lead to get a 95/5 mixture I need to buy a lead hardness tool