Since BPCR shooters are routinely exposed to lead when casting, loading and shooting you might be interested in the following article just published in NRA's Shooting Sports USA magazine.
http://www.nxtbook.com/nxtbooks/nra/ssusa_201410/#/32

Wayne

They mention children whom of course are more sensitive to lead but much worse is a pregnant woman .They should not be shooting where lead is present. They have now BTW linked autism in part to chemicals that the kid gets while still in the womb. Chemicals can be very dangerous !

I have reverted to only casting outdoors in the back yard and away from my family. If you're going to shoot BPCR you don't have a lot of options except lead bullets and lots of them. The information is good and critical to the sport. The NRA has seemed to have shot themselves in the foot here and given the anti's some more ammo. We will likely all end up shooting monolithic bullets one of these days like it not. My buffalo guns and muzzleloaders don't do well with copper or bronze. Ronny Barrett and Barnes will certainly get another boost in sales.

The guys at Cast Boolits tend to have much more casting experience than the rest of the public.
It is rare that any of them have elevated lead levels. When they do it is usually a pistol shooter that shoots indoors in a poorly ventilated range.

Yes that's about right !BTW EDTA a chelate is used to remove lead from the system.Also get an engineer to check and improve the system at your range.

BTW my personal experience was at an indoor pistol range , poorly ventilated . All the regular shooters had lead poisoning symptoms .Each had a different set of symptoms !!! They may not be tthe "typical " symptoms !!

I've been fairly careless handling the stuff over the years as a caster and swager. Only time I was ever checked, though, was after getting a whopping headache melting scrap on the kitchen stove in college while making duck decoy anchors. No lead issue, just a ventilation issue.