Originally Posted By: BrentD
....Be that as it may, lead in the first 3/8" of the surface is pretty abundant in some fields. But probably only where high volume shooting of fixed positions are the rule.

So, did the scientist buy a couple of bags of lead shot out of the department budget, and sprinkle it a few paces from where they pulled in his prius? Mr. scientist leans back and points his grad assistant to the perfect spot to take some soil samples, they can extrapolate for the rest of the field later.

I have no idea if its still taken down, but soar raptors used to show a braggin X-ray of a supposed public land gut pile from a hunter harvested deer. It showed well north of a hundred individual pieces of lead in it. Maybe, even too far fetched for the scientists?