Rust Bluing Solution
 

Has anyone used Brownells Classic Rust Blue?

Rust bluing is labor intensive and it is discouraging if the color is not correct for a Luger.

Dick,

There's a thread here somewhere--I think it's a sticky--with info for adding saltpeter to the Brownell's solution in order to produce a better color match for Lugers.

*edit* Found it! http://forum.lugerforum.com/showthre...icky+rust+blue

Actually, sodium nitrate. not potassium nitrate ( saltpeter). But yes, read the whole sticky and you'll have a good starting point.