Raycat, if you are a perfectionist like I am and really want to prolong the original condition of your bore, there is a non-abrasive way to do it and get down to the bare metal. You will need an Outters "Foul-Out" electrochemical bore cleaner, available from Brownell's. It actually unplates the lead from the bore the same way ordinary electroplating plates nickel, gold, etc on metals but in the reverse.
You will need bore solvent and patches to remove the powder fouling for the first pass though, then clean the bore with brake cleaner and dry it with a clean dry patch. You don't want to leave a film of solvent in the bore, as it will insulate the bore from the anode and prevent the lead removal process. Don't use the solvent anymore, just clean dry patches between "Foul-Out" applications. Remember, each shot leaves a layer of powder fouling and lead in the bore. As you remove the lead with the "Foul-Out", the powder fouling is left in the bore, and it insulates the barrel from the anode rod so it stops removing lead. You must then run a dry patch through the bore to remove the powder fouling, then resume the "Foul-Out" process again until the machine says you have gotten all the lead, and dry patches produce no more powder fouling. Usually it takes anywhere from 2 to 4 cycles of going back and forth between the "Foul-Out" process and dry patches to remove powder fouling. Then run one patch with CLP Break-Free on it through the bore to coat it and protect it from rusting. Be sure then to run a clean dry patch through the bore with a brass jag before shooting again.
