I'm looking at getting into casting my own lead projectiles and then coating with either pc or hi tek. Mainly 9mm and .45acp. I've got the smelting pot and furnace along with ingot moulds. Basically my questions are on the lead. What lead besides wheel weights would I need? How to make the lead good for auto style pistols. I've been told that pure wheel weights are too soft and need tin or antimony to make the lead harder. How do I know what amount of this or that to mix in? Any help would be appreciated, thanks.