Re: Older Sendero with terrible carbon fouling
I don't have access to a borescope to check, but I have scrubbed and cleaned with everything imaginable. I have used Montana Extreme, Bore Tech Eliminator, TM Solution, and Wipe Out. Once it fouls it is easy to clean. A couple of strokes with a brush then a couple of wet then dry patches and its good to go again, easy sub MOA. It just fouls again quickly in less than 20 shots.