So isn't steel and copper toxic when ingested? I think the toxic story is really a way to sell different ammo at a super inflated price. Every where else in the world lead is used in shot gun hunting ammo and there isn't a decrease in waterfowl. The switch was a typical fabricated theory of how many birds were being poisoned. Well now we have a great deal of cripples and lost birds.
One thing that got me was how the MNR in Ontario decided to sanction against lead shot, for dove hunting. Everywhere else including many states, doves are hunted with lead.