Then we can get into the best cleaner to use, use of a patch catcher and how to properly "break in" a new barrel.Of course I will then need a bore scope to see how clean it is.i'd recommend it. a bore guide allows you to insert the cleaning patch into the bore guide, then squirt cleaning fluid of your choice into the port, and then push it into the bore, as opposed to squirting cleaning fluid on your patch and then having it drip everywhere as you flail around trying to get it through the action into the chamber and then bore. what you want to avoid is having one of those fairly harsh solvents dripping into your trigger group and sit there until the next time you clean it. in addition to potentially having some corrosive action, it will gather dust and soot and anything else floating about and stick to it, potentially gumming up the works.
second, as was mentioned above, you're trying to push a flexible rod from more than a foot away. that means it's going to bend and the throat is going to stop it (or muzzle if you clean from the other end) from flexing. you don't want to consistently apply pressure to that area as you drag it back and forth. if you use a guide, the pressure will be on the rear end of the guide and any flex in the rod will generally be in the middle in the bore
and keep in mind it's not the aluminum that does the damage but the tiny sand-like fragments. that's why it was also recommended above to wipe the rod down after every pass.
I doubt after 40 years or so, I am gonna change.