Schuetzendave wrote on Jun 28^th, 2021 at 12:05am:


Actually, in 99.9% of the cases it's not the solvents that are the culprit, but the fact that corrosion developed under the fouling in the barrel. And when you have an efficient cleaner that removes the fouling, it gets blamed for the corrosion...

Good advice 40 Rod. 
Most but maybe not all bore scopes are 20X and what one sees is magnified more than one might actually realize. If seen with absolutely no magnification one would not see such defects that are typically found in all of the various barrels. 
In regards to cleaning lead and alloy bullet barrels I use JB Bore cleaner and I wipe it the same as one would do a babies behind and until it is clean. I also do ten strokes for the first third of the barrel. Five for the second and two for the last and I never let the patch exit the muzzle. The fouling does have abrasives in it so over time I am actually creating a choke in the bore. If the patch goes out the end of the muzzle over time it will create a bell at the muzzle and the best in accuracy will slowly be lost. This I learned from my dear friend and a past barrel maker Barry Darr. Also if the carbon is not continually removed it can also create a carbon ring just ahead of the throat and accuracy will be also be lost. This I have seen with my own eyes and have also removed for a close a friend and its a real bitch to get rid of it should it occur. He rifle's accuracy fell off substantially and he couldn't figure out why. He took it back out the range the very next day after I removed the carbon ring using JB Bore cleaner only and the rifles accuracy was completely restored.