Thanks for all the help! An overnight foaming with Wipe-Out resolved it and I got it clean.
You guys scared the Bejesus out of me about using the SS brush so I called my manufacturer (Rifles Inc) and spoke to Lex about it. He pretty much scolded me for it as well.
"Either throw that brush in the trash or give it to someone you don't like" was his comment!
Since I'd only done a limited number of passes with it he suggested I see if the accuracy was affected rather than find a bore scope.
He went on to scold me for
"surgically cleaning" everything out of the barrel. According to him, he recommends not going to the squeaky clean point and leaving some fouling in the barrel and to only clean with a patch wrapped nylon brush and solvent after 20-30 rounds max.
Today I went to the range to chronograph and completely recalculate the data for the rifle. The results are below. The short answer is I think for a 4.5 lb sporter hunting rifle there was no apparent damage by using the SS brush and my overly ambitious cleaning.
Also, keep in mind looking at these groups that I'm a elk hunter foremost and not a bench rest shooter. All this came about simply from me wanting to learn and practice so I could extend my long range comfort level.
This is factory Barnes TTSX 180gr ammo. I allowed the barrel to cool about ten minutes between groups.
I'm really hoping to tighten these groups up some with practice. Do you think a good reload would help as well?
Thanks again to all of you. I learn a lot on this forum and sometimes it's the hard way!
Robert