No really specialized equipment for primers. Just need the raw material, a few simple machine tools (punches, mainly), and someone who understands the chemistry of making the primer compound.
After that, it's just making small batches and hoping you don't blow yourself up. Primer compound needs to be handled wet. Once it starts to dry, it gets boomy really quickly.
Oh, and percussion caps for black powder?
They're the exact same thing as modern primers. Just shaped a bit differently.
"I wasn't sure if Eugene just found a general machine shop that he thought he could adapt, or did some research and found one with equipment that could more easily be adapted / converted."
Actually, he didn't find *expletive deleted*it. It was just a room with an assortment of random, unrelated equipment that makes NO sense when put together.
The crucible just hanging there in the middle of the room? OK.... where's the heat source? The furnace that would be needed?
And, where's the items needed to support casting, which the crucible infers? Sand molds, pig trays, etc? Nothing like that there.
There were some things that looked like they could be in a machine shop, though. A heavy duty drill press, possibly a lathe, and all of it position WAY too close to a swinging cauldron of hot metal.
Anyway, my rant.
As for Eugene saying they need to find a lot of lead...
I know exactly where they can find a lot of lead. Dangerous to deal with, thought...
There are a gazillion abandoned cars and trucks sitting around, and each of them has a lead acid battery that can be smelted.