So I have been getting into casting bullets and such for my BP revolver. so far I have just been making ingots out of wheel weights. Now as I'm sure you know not all wheel weights are lead- some are zinc, and steel also. Being poor I have just been melting the stuff in a big pot over a campfire (cant afford a casting furnace) and scooping out whatever doesn't melt. It has just occured to me though that the zinc could melt also, so, is it bad if some zinc got mixed in with the lead. If I cast bullets out of those ingots are they going to be too hard and damage the gun? Please give me some good news