60 to 65% yield from scrap recovered from my club's berms, averaging 2.0% antimony, no tin. My club's berms may not be typical, though, being used for action pistol matches where a lot of folks reload using commercial coated cast (I've bought scrap bullet lead from Rotometals that was 1.5% Sb, no tin).
It was a lot of work. I'm grateful that I currently have a source of alloy that's cleaner, more predictable in content, and more plentiful. Of course, there's now literally I price I have to pay, whereas the berm lead was free. Still, my back appreciates the change.