Shawn, thanks for the information. I don't think I will go that high, 825.

If worse comes to worse I will cold blue it a bunch of times, or I will harden a piece of drill rod and draw it back to about 600 deg, which should be blue, and try that first.
The only thing bad about that is they are not the same compositon. I believe L.C. Smith used mostly 6120 on a lot of their case hardened parts, and the drill rod definitely has more carbon content.

Miller, That's want I thought. And yes, does it make a difference? I don't believe so. I'm wondering if Hunter Arms did polish the top of the lever and when case hardened, it turned that blue when annealed.

David