Got a boresope for gift, 1st time used it to check out a barrel on a .223 that has a lot of rounds thru it but sat in the safe for awhile.

1st scope showed a lot of these small flakes, so I cleaned it
  1. wipe out accelerator folowed by wipe out foam. Let sit for ~24 hours.
  2. 2 passes with jag and patches of Butches
  3. 40 strokes of brush with Montana bore cream
  4. Nylon brush w/butches BS, 20 strokes
  5. Dry patches


2nd scope showed majority of flakes gone, a few left.


https://photos.app.goo.gl/27aIdekvOqDKN6Mt2
https://photos.app.goo.gl/dfMdSnK12rUqnIvF3
https://photos.app.goo.gl/NmuRMLUReheOaguo2


Call it good and shoot,
Or go after them with maybe a bronze brush till till all gone.
Any more aggressive methods to suggest?

Thanks, Red