Peter, That would have been a lot less confusing if you had shot the lawyers BEFORE writing the legislation!
As for shooting, "Guns" (by this they mean the person in control of the weapon) are supposed to use tungsten or steel shot over water, the particular problems with this is that neither are as heavy as lead and therefore don't have the hitting power AND both steel and tungsten can damage gun barrels, not a problem with your £200 second hand AYA Yeoman, but a little disconcerting when pumping steel& tungsten shot through your £50,000 Holland and Holland.
Perhaps this explains why "some" guns continue to used lead loads.
If lead is bad news then the fact that some countries still use depleted uranium SABOT Tank main gun rounds, is a lot worse.
As I understand it only the Krauts have managed to get a Tungsten replacement to work!
I am still right about the Lawyers though!!