havesomeseichel,
Lead shot has been banned for all waterfowl hunting in the US since 1991 (because of concern about the lead affecting surviving waterfowl). Nevertheless, people are still legally shooting waterfowl. That’s because there is lead-free hunting ammunition available; it’s made of copper, which is more expensive than lead. So a ban on lead shot is not a ban on hunting after all.
The ban on using lead shot for hunting is, as you wrote based on concerns regarding lead