Re: Powdercoating barrel and action
Have you looked at QPQ..it is indestructible!!!
I once had this on a bolt gun, and you could not leave marks on the finish with a course file. Additonally, it has natural lubricity.
Here is some information on it:
Quench polish quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance, originally developed by the Kolene Company. The name refers to the three steps involved: nitrocarburizing, polishing, and post-oxidizing.[1]
This process is usually used when two or more of the following properties are required in a workpiece: wear resistance, corrosion resistance, lubricity, or fatigue strength.