I'm curious whether anyone has tried or read a test report on this Otis product? You can read about it at Otis Technology, Inc.
If you click on their "catalog" you will see a display box devoted to it.
In any event, Otis makes some pretty extraordinary claims for a product that retails at $80. They claim that it, in effect, creates a ceramic/metallic lining in your bore that dramatically increases barrel life, accuracy, etc. They even claim it helps restore worn bores.
There's another company in the market called Xado that makes similar claims for a product to line both engine cylinders or rifle bores.
I'm pretty skeptical of grand claims so I'm curious what field experience is out there. Thanks for any info you can provide.