They are currently looking at this here in Britain. It's just a back door way of environmental groups getting a ban on shooting in general by making it nigh on impossible to carry on. Oddly, and something they have no answer for, is that the big shooting estates in England where driven shooting has been going on for over 100 years and thousands and thousands of rounds are fired every year with most of the shot falling in fairly restricted areas there seems to be more wildlife present than on the areas actually managed for wildlife. If spent lead ingestion is a toxic problem then somebody is failing to tell the animals that they should be dying in their hundreds as a result of all that spent shot. Lagopus.....