Except with the exception of Schwing, I probably have a higher lead content than most anyone else on this board, that said. I grew up in a place called Kellogg, ID during the peek of Bunker Hill and the rest of those mining conglomerates. Lead was every where, both raw and smelted. I have a lead count the last time it was tested, of 430. There are several methods of testing, but take it for granted this is high. As for safety around lead, if you are casting, a fan sucking the fumes away, a filter mask that will work at multiple parts per million and glove, (not only for burn protection but lead that can get on your skin in powder form). When you are handling lead bullets during loading there is not much chance of being contaminated, but gloves are a hassle, no matter how well they fit, go to an auto parts store and pick up some liquid gloves, it comes as a thick liquid that you apply and let dry, when it drys go ahead with your loading, at the end just peel off the residue. I don't advocate anyone use lead without great care in hygiene.
At 66 years old, I am still getting around very well and enjoying life, have 2 great children and 4 grand children with 7 great grandchildren, all are in excellent health and very lively, but know a few who were leaded in other places who are not doing so well.
EVERYTHING YOU DO WITH LEAD REQUIRES YOU TO TAKE PRECAUTIONS AND PAY ATTENTION TO YOUR HYGIENE.