Spread the word around mates and its suprising how quick your lead stock builds up.
Old lead pipework, sash window weights, off cuts from builders doing flashing work, its all reusable.
Avoid stuff from the backstop if they do live firing, the stuff has other metals mixed in which is too hard compared to pure lead for balls.
“If a cricketer, for instance, suddenly decided to go into a school and batter a lot of people to death with a cricket bat, which he could do very easily, I mean, are you going to ban cricket bats?” :- Prince Philip said after Dunblane