Originally Posted by
tbonesmith
Patch with some Hoppe's or other powder solvent, then scrub with bronze brush with same powder solvent, patch out till clean. Leave it at that depending how many rounds, after it's done about 100 or so since last using copper solvent, do the previous powder solvent routine, then apply some copper solvent (Sweets 7.62 solvent is good) leave it for 10 minutes, then patch out until clean. If you feel like it put another patch of powder solvent through it and leave it in there for storage, Hoppe's at least is oily.