Joe,
The only organization I can remember fighting lead bans has been the NRA. There last effort was not about guns or ammunition, but about fishing sinkers. This was back under Clintons EPA. There thought was to make a regulation to make illegal any fishing sinker less than 1"x1"(approx.). There was no science but it was to be passed along with lead storage and usage being handled as toxic and requiring fees and regulations to protect us from ourselves. The NRA labored on our behalf to defeat this effort.
The NRA may not be every shooters cup of tea, but right now they are our best hope of containing some of the Washington maddness.
I try to remind my fishing friends about this when I can.
Best,
Ron