Gun scrubber isn’t a bore solvent. It’s a degreaser. I send a wet patch soaked in Hoppes 9 down the bore and let it soak while I use Hoppes on everything else. Pick up some chamber starts to clean the lugs in the chamber. They fit on the end of a cleaning rod and fit into the lugs to get them cleaned out. A soaked patch in the upper. Then several passes down the barrel with a Hoppes 9 soaked bore brush, followed by a couple of solvent soaked patches down the bore to clean it out, followed by dry patches. Light lube where needed and done.