Coryjoe,
As you all know, Allen Martin is my mentor. Or, as I like to call him, the Lehigh Jedi, and I am but his humble southwest Padawan.
The steel is browned VERY aggressively, way beyond what you'd normally take it. Then the hard part. You sand it all back down again, till all that's left is the pitting from the browning. At that point the metal is blued, using a cold bluing. Then steel wooled back with oil to set the whole thing. Makes a nice, armoury bright that had aged over time.