My fingertips will show visible traces of lead on them from handling the pellets after shooting my air gun. I do wash my hands, but after pushing one lead pellet at a time into the chamber for even 50 shots, I can see the lead. I don't worry about lead dust from shooting 1/10th as much as I do about handling lead pellets.
Yes, I understand that. I get lead on my fingers as well, both from loading my air pistol and reloading conventional ammo. My point, however, is that lead doesn't pass through the skin except in trace amounts and therefore the lead you can see on your hands doesn't pose a risk, unless you eat or smoke (or lick your fingers or pick your nose, etc.) before washing it off, in which case it can enter your body either via ingestion or inhalation, respectively.