If you're shooting, then you're already exposed to heavy metals, but with some simple precautions, you can eliminate the problems. First and foremost, don't put your hands or fingers in your mouth or nose during or after either shooting or reloading, until you wash your hands. Also, don't eat, drink or smoke until you've washed your hands. This goes for almost any activity, including shaking hands with others, handling money (possibly the worst carrier of germs), or anything else when you've contacted foreign surfaces, etc.
My doctor has told me over and over that the best way to prevent getting sick, or exposure to heavy metals, is to wash your hands.
Reloading isn't any more dangerous than shooting, as far as lead exposure is concerned, as long as you take those simple precautions. You don't have to wear surgical masks or rubber gloves. You just have to wash your hands.
Hope this helps.
Fred
PS: I wish I had never sold my blacksmithing equipment, but I moved and didn't have a place for the forges, etc. I still have my 150 pound English anvil, though.