I like the foaming cleaners myself. Let it soak for 15min and then work it until it is clean. Kroil is a good one for Cylinders too. You are having the same issue that people have after shooting 22 shorts in their revolvers or rifles, after awhile they can not chamber the LR ammo anymore until a good bit of scrubbing.
"A free people ought to be armed" George Washington 1790
‘For those who would give up essential liberty to purchase a little temporary safety, deserve neither Liberty nor safety.’ —Ben Franklin.”