Scrap Sources for Lead

Hey, I’m coming over from r/reloading and r/castboolits.

I’m looking for a somewhat consistent source of cheap/ free lead for casting bullets. Casters used to be able to use wheel weights, but the alloy has shifted away from lead.

I sift the berms at my local range for range scrap, but thought I’d ask here for anything interesting you guys may have come across.

Thanks!