I know ask a question to 100 people and get a 100 answers.
I just got a teslong bore scope and went through most of my guns. All were pretty good as to no copper build up. BUT several had extreme amounts of carbon. I never realized it was that bad.
What I normally do is I take a foaming bore cleaner And fill the bore. Wipe it out after about 5 min then fill it back up and let it sit over night with the muzzle on a old sock. The sock lets me know how bad it was fouled by the colors that soak into the sock. I then fill it back up and leave it for another night. Then wipe out and apply a light coat of oil and that is it.
I don't like to use mechanical means to clean my barrels.
I just got a teslong bore scope and went through most of my guns. All were pretty good as to no copper build up. BUT several had extreme amounts of carbon. I never realized it was that bad.
What I normally do is I take a foaming bore cleaner And fill the bore. Wipe it out after about 5 min then fill it back up and let it sit over night with the muzzle on a old sock. The sock lets me know how bad it was fouled by the colors that soak into the sock. I then fill it back up and leave it for another night. Then wipe out and apply a light coat of oil and that is it.
I don't like to use mechanical means to clean my barrels.