If you want your barrel Melonite treated, that is if your are interested in doing so. Found this while I was snooping around. Kind of price for a minimum order. Thought I would just through it out there. http://tinyurl.com/az6u9j3

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NRA member since 1974

For all of those who still believe that Tenifer and Melonite are different, this from the HEF USA web site:

"MELONITE, and its synonymous trade-name, Tufftride (or Tenifer), is a relatively straight-forward, flexible process to operate and maintain, and produces exceptionally uniform case hardening. The MELONITE process begins with the placement of parts in a re-circulating air preheat furnace, followed by immersion for 60-240 minutes in a molten nitrogen-rich salt solution contained in an aerated furnace. After nitriding, parts are treated in an oxidizing bath, water-cooled and rinsed.

An alternative series of post-nitriding steps involves a Quench-Polish-Quench (QPQ) sequence after liquid nitriding. For many applications, this finishing process provides a surface condition that protects against corrosion and wear better than hard chrome or nickel plating."

If you look in the notable thread index you will find a thread called Barrel Specs for Sport that gives a whole bunch of engineering studies on Melonite. They are from a third party that doesnt have a dog in the fight....check it out.

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Grover Oathkeeper

Melonite & Tenifer = Same process slightly different salt formula. The original European Tenifer formula had sodium cyanide which the EPA doesn't like. Regardless end results are the same, an extremely hard surface (65+ RC).