Actually, I don't believe any condors have been killed by ingesting lead bullets or fragments.
I can't find it, but I posted a real scientific study that said that bullet lead was too hard to be able to cause lead poisoning awhile back.
If they ate a bullet, they would regurgitate or pass the bullet. It doesn't dissolve in them.
The tree hugger types used junk science years ago to get this started.
Here you go. http://www.ventanaws.org/species_condors_lead/
But don't worry, it's not a "real" scientific study since it doesn't support your view.