Someone told me that one of the greatest expenses ranges have is in controlling ventillation and any possible issues with airborne lead and mercury compounds. For as infrequently as I go (so far about 1 hour a month), I'm not really too concerned.
As far as residue on your hands, I think washing with soap is all that is needed. While injestion of lead is never good, trace amounts are not going to kill you. Just my $.02 worth.
"There is nothing which I dread so much as a division of the republic into two great parties, each arranged under its leader, and concerting measures in opposition to each other. This, in my humble apprehension, is to be dreaded as the greatest political evil under our Constitution."
- John Adams