Good point about the ammunition. It was on a page dealing with the casings specifically so that didn't click. I figured it was boilerplate but posted it since it was on a page dealing with the same type of brass. I admit I am playing the pessimist here, might as well considering the accusations have already been leveled against me. No safe threshold for lead exposure has been discoveredthat is, there is no known amount of lead that is too small to cause the body harm. is what I'm going on here. Surely there has to be some 'safe' amount. Let's assume a vaporizer has 100g of brass in it. Assuming it contains 0.07% lead that would be 0.07g of lead in total. So, for the sake of argument let's say you ingest 0.005g of lead, using it over a period of 5 years. Is that significant? We need a scientist.