The hazards of lead in ADULTS is way overstated, and misunderstood.
The reason lead paint was banned, 50 years ago, was because parents of children living in poverty in slums, were apparently unable, and therefore, not expected to supervise their children to keep the kids from eating chips of paint off the wall, nor expected to actually Scrape loose paint off an dispose of it to prevent young infants from eating it. Good housekeeping was apparently a service the poor expected the Federal Government to provide to them.
Because infants are still forming their brains, elevated lead levels were found to appear in their brain, and contribute to retardation, and other nervous system problems. Instead of demanding that parents actually take care of their children, Lead was ordered removed from paints, instead. Lead abatement programs were implimented by the Federal government, through FHA, and HUD, to rid housing for the poor from lead based paint, at the expense of taxpayers.
In adults, lead levels can raise and lower- and lead doesn't seem to affect adults in a permanent way. In industries where lead can be a problem- indoor ranges are one close to our hearts-- levels are chaecked annually for employees or others that spend much time in the areas. When levels reach too high a percentage, the employee is required to be moved to another job until his lead levels come down. More and more ventilation and lead removal equipment is being required of lead using industries, including indoor ranges, which is why they cost so much to construct, and to maintain.The added ventilation and cleaning equipment has reduced the lead levels of people working with the lead.
The fumes you see coming off molten lead when casting are fairly mild, but if you don't breathe them in, they can't be a problem. You do need to wash carefully, and change clothing so that you don't transfer particles to other areas of your environment. If you are simply handling lead balls, or ingots, washing your hands off with soap and water is all that is generally needed to protect you from the lead.
Don't put your fingers in your mouth until you wash them.
Its better to wear gloves, and then wash the gloves when handling lead. However, you are going to handle lead balls with your fingers, when loading and shooting balls and conicals in your traditional guns, and you are not going to avoid the problem of getting some lead on your fingers and hands.
I encourage everyone to take a bottle of water, and soap, and some wash clothes, towels, or paper towels, to clean your hands and face up when you finish shooting. Keeping a damp rag near your range box so you can wipe off your hands, or your ramrod, or equipment.