Okay. Got to inspecting and cleaning the Blackhawk 45 Colt. Dayum it was dirty and wouldn't function with the cylinder installed. Once I got it apart, soaked it an hour in WD40 and scrubbed it and the blasted it with solvent.....
Reasonable mechanical condition. Plumb brown frame, black barrel and perfect bore and cylinders. Cylinders mike .455ish which is about right for an early new model 45 colt...it'll prolly shoot best with .454 bullets....pretty much standard lead loading in factory ammo. Bluing is about 75%+ coverage....lots of holster wear. Some light freckling all over. Big rubber grip is fine and the finish on the alloy frame is over 90% condition.
The reason it wouldn't cock with the cylinder in place? The hammer plunger, which releases the bolt lock on the back stroke of the hammer was stuck too far up into the hammer. And the reason it was stuck in there is cause it was broke, rotated and one half wedged over the other....was a booger to get out. But in all, since it was stuck/wedged up in there, it couldn't do its job and release the bolt lock.
So, either a new hammer or just a plunger. I hate to pay $10 for a $2 part so maybe just the entire hammer assembly. I'll think it over. Gotta get it running and I think I'll sell or swap for a caliber I load for.