Damn near wore out a Sako 7mag trying to get it clean.
Finally realized I was contaminating it with a brass brush, and the
cleaner was eating my jag. Leaving green, which I thought was copper.


The.

The fugging thing wouldn't shoot decent.
Thought I might have ruined it.
After it got a bit dirty, it was normal again.


Same issue with a shotgun I use for Turkey hunting/shoots.
As the season of shoots went on, it shot better. More wins.

Solvent fine steel wool, I cleaned her up like new.
Wouldn't pattern near as well.
Untill it got some plastic built up.
Hasn't seen anything but an oil mop since.


Parents who say they have good kids..Usually don't!