Interior barrel cleaning w/G96 and frontier pad

[BRDHNTR]

I noticed recently that several of my Parker barrels are very tough to clean out all the powder residue from shooting even after cleaning with bronze bristle brush and Hoppes as well as other solvents. There always seems to be a streak left in the barrels after cleaning. I pulled down from my self one day an old can spray can of G96 un Treatment that I've had for years but never used. I then took a couple of wire strands from a Frontier Pad that I had and wrapped them around the bronze bristle brush. Sprayed the interior barrels well with G96 and worked the brush through multiple times and then ran multiple cleaning patches down the barrels. Looked down the barrels and Voila, they were spotless. Cleaning patches showed stubborn powder residue. I'm assuming that the few strands of Frontier Padding did the major work to 'scrub' and loosen the remaining residue with a little help from G 96. But my question and concern is this: Will using a few strands of a Frontier Pad wrapped around the brush ...will this in any way be damaging to the barrels interiors over time? Is this method ok to repeat?