I don't know if you can get a copy from some one of Precision Shooting magazine.
the Jan. 2010 issue has an article "Conversations with Joel Kendricks", by John W. Lewis
it's an interesting article, & Joel has some interesting info. on the " Liquid Salt Bath Ferritic Nitrocarburizing Process" as they call it.
If your not a PS subscriber, I'm not sure how you can get it.
if you do a "bing, or goggle"search on "Joel Kendrick, nitrocarburizing" it will give you a lot more info.
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