-
Place a barrel plug (available from Brownell’s) in the breech end of the barrel. Be sure the barrel plug (also called a chamber plug) is secure in the breech end of the barrel before filling with the mixture.
-
Stand the barrel with the muzzle-up and fill to capacity with a 50/50 mixture of bore solvent and Kroil. Let this sit for 24 hours.
-
Pour out the dirty solution into a suitable (disposable) container. You will be amazed at the amount of lead that will have been leached out of the barrel.
-
Run a cleaning rod with the proper size brush (avoid brass as this will dissolve somewhat) down the barrel starting at the breech end.
-
Run a cleaning rod with a jag and circular patch down the barrel starting at the breech end. Be sure to remove all traces of the bore solvent/Kroil mixture.
-
Finish with a patch that has a few drops of barrel lubricant on it.