Who makes "Hardy" ammunition? It's also very easy to blame any factor out in the enviornment for poisoning the condor. Bullets aren't the only source of lead in the enviornment. Many of these farms still use leaded gasoline in their vehicles. The lead from the gasoline is deposited on the vegetation in the fields, and the prey species eat it.
Other types of industrial pollution can also enter into the food cycle of these scavengers. A lot of small animals scrounge around in old barns and outbuildings. The places are covered with decades of lead-base paint, now flaking away. Ingestion of the chips while eating also puts lead into their system.
I find it amazing that these animals are finding so many dead animals that are full of lead bullets and fragments of lead. State-wide? Sounds suspiciously like eco-terrorists.
The tie-in with condors running into power lines, etc. is also a fabrication, until and unless these birds can be proven to show lethal levels of poisoning. That's like saying that any human who hits a pole must have been drunk, because drinking impairs their ability.