The Victorian Department of Health has published a brochure warning of the dangers of lead dust in shooting. I note that one of the recommendations is to: "...use lead-free ammunition - ammunition that replaces lead-based primers with safer alternatives and/or ammunition that uses lead-free or jacketed projectiles that have a lead core covered with a copper or nylon coating"
So the message is to take reasonable precautions when using or cleaning firearms and range equipment/surfaces and keep using copper coated bullets!