Break Free-bore cleaning foam
I've become a big fan of the foams, the one above currenty, cause its available locally.
I clean the bore as per usual with std Hoppe's and brush and patches. Then I do a foam treatment, letting the rifle set 10-15 minutes. You will not believe what comes out of the rifle! I swab again, then do an overnight foam treatment, swabbing with Hoppes as a last step.
I could not get Hoppe's Copper to cut my ADL's fouling problem, and using it after a match on F-T/R rifle was a lot of work too. The foam has eliminated a lot of scrubbing!
Ran some foam through an old Garand........good grief!