A good source of tin and antimony for bullet casting is pewter. By law, any alloy called pewter must be at least 85% tin, with the rest being lead and antimony. When at the flea market or yard sales, it's easy to spot old pewter. When you flip it over and look at the legion printed on the bottom, it usually says pewter. Even if unlabeled, it's easy to spot because it's so soft, it's easy to deform (that's why people get rid of it cheap at yard sales). I recently visited a pewter manufacturer and learned that the pewter currently on the market is now lead-free, with a composition of 97/3% tin/antimony. While I was there, I bought about 20lbs of floor turnings for 10$. That's 97/3% alloy for 50 cents per lb. For casting now, I melt enough wheelweights to get 19lbs of metal and throw in 1lb of melted down pewter turnings. That should make my alloy very close to Lyman's #2 with only 50 cents of tin added (wheelweights are free). Casting results have been excellent. Anyone else here casting alloy with pewter?
Michael