I LIKE cast iron for the large space and heat retention. BUT! [ and keep this a secrete!] The Truly Really Good folks from the BP site tend to strongly believe that cast iron is for cook'n and it's a bit sacrilegious to melt lead in! That was years ago. My first mold was a tin muffin pan. Now I have electric pots, BTW, mad of cast iron and ladles also made of cast iron. Both were designed for use with molten lead. They came from an industrial electric company and they used the pot to tin the ends of cables. It's deep, insulated and awesome. Remember I'm making cannonballs with this. I can't imagine using a ladle for bullets. It was years ago but as I grew my gear, I used all the cast iron skillets as targets. It was interesting to see what made a hole and what did not. Surprised me more than once. Your Pkg is on its way. I'm just gonna call it a pkg cuz I don't know if sending something like lead to you is allowed. I did not know it was a hazmat issue. Or is it? I used to be a cardiac critical care RN. And have had my own issues. So did you know? Casting your own bullets is calming. I think at this point your making way too much of an issue of it. Just get started and form your own opinions. You'll also come up with a lot of your own answers as well as a host of new questions. Last, I really like a cast iron skillet for cleaning up wheel weights to pour ingots. Gosh what a mess! I sort of miss it.