Thanks for all the suggestions, it really helps when trying to correct a problem that was self inflicted! The C4 arrives tomorrow but I picked up the Seafoam spray and plan on soaking the barrel for a while with it. I also plan on soaking the barrel overnight with Kroil as a possibility it will"creep" into the carbon coating. The local GM dealership did not have the top engine carbon cleaner in stock so I tried the Seafoam for now plus waiting for C4. I guess from what I am seeing in the barrel and read is likely I have bonded the carbon to the steel which makes it the toughest to remove. It seems almost like a ceramic coating being so impervious to so many different cleaners including JB with bronze brush! What a life lesson that is painful since I had just purchased the Magpul 700 stock which fits great and allows me to use slightly longer COAL with the box magazine.
I was hoping to use this rifle this fall for elk/mule deer but may have to use old reliable Sendero in 300WM (better shooter but weighs in quite a bit heavier) which is OK.
My basement smells like a refinery right now and have egress window open, candle burning and my ozonics running....Wife ain't happy about that at all....