RE: 12 gauge. round ball loads
I cast off an outdoor turkey cooker burner. I bought a turkey cooker kit that came with the huge pot, the stand, the burner, and regulator. I got it at the end of the season for $19.95. I then wired an old gas stove burner grate to the stand and that supports the smelting pot. So I have the whole thing, plus a turkey cooker (which works really good by the way).
Then I got/had a Lyman ladle, a small Lyman smelting pot,some rapine mold lube, a bees wax candle, and made a scraper out of sheet metal. I built a drop box and lined it with leather so after I get them poured, I dump them into the leather lined box.