Don't fear inhaling lead molecules when casting. They're a lot heavier than air and won't float into your breathing space. But, that's a moot point because to get lead to vaporize you have to heat it a heckuva lot hotter than you can get it in a lead pot over a propane fire, or in a commercial casting furnace.
The vapors/smoke given off when fluxing on the other hand might prove injurious, but that's why God gave us exhaust fans and/or the great outdoors.
Oft times I too view the act of casting bullets as not a means to an end, but the end itself. I almost hate to shoot the little jewels after expending the labor to make them.
