I've never cast bullets, but when I was a kid, I was really into war games. My friends and I couldn't afford to buy as many soldiers as "needed" so my dad bought me a set of molds. Oddly enough these were made of very heavy rubber held toghther in a bench vice. They never wore out in many, many castings. I don't know what they were treated with to take the hot lead,but they worked like a charm. If they could get the details right n a small soldier they should be god enough for a bullet. Nowadays with silicone, you'd think they could do the same thing only better. just a thought.
FQ13