I have managed (I hope) to cultivate a long term source of clean lead from a radiopharmacy. 50 cents a pound, which may not be free but is still cheaper than any other local source I can find in the San Francisco Bay Area and will also be a reliable and steady supply.
What caught me off guard was the owner's telling me that most of these containers, which were for isotopes of iodine, are fifty or a hundred pounds each. I assume he knows since he was selling them to a recycler before I made him a better offer.
The biggest containers I've heard of are those 32 pound grenade shaped technetium 99 generators. I guess I will see myself next week, but if these are really that big, ima hafta rethink my melting rig and ingot molds.
Any one here seen isotope containers that size?