I need to get hold of some lead which has a decent arsenic content. I have been led to believe that shotshell shot, particularly Magnum shot, contains around 0.5-1.5% arsenic. Is there a friendly clay club anywhere in the Southeast or South West of England where the shot falls into easily-collected piles that would be amenable to an idiot like me collecting some? I have thought of Bisley, but they are generally unamenable types these days... you do get a lot of shot hanging around on the green material though... I'm currently casting from a mixture of Linotype and roofing lead, which contains no arsenic and won't quite get as hard as pure Linotype as a result when heat-treated.