Hey Fred,
I take the lock off, just poke a round toothpick in the TH,fill the barrel with COLD water.Let it sit for 1/2 hour. I plug the lock mortice with paper towel.After sitting a spell, I take a wet cleaning patch,lay it over the muzzle and pull the toothpick out.With cleaning rod in hand ,I push the patch down the barrel and hydraulic the remaining water out the vent with force.I then just dry patch it out.
Here's a little trick I learned to check that I got all the fouling out. After my second or third dry patch(when all looks clean),I run a Lehigh Valley Patch lube/cleaner patch down the bore. If there are any residuals in there,this patch lets me know.I then continue to dry patch the bore out. One last step.I shoot a 5 second burst of WD40 down the bore and with a patch sprayed with the same, I push all the WD out the vent,then a dry loose patch to clean out the WD40,then reassemble.
I do this method because my rifle and smoothie have those hard to see lil pins. I come unglued when I mangle the wood around them with my pin pusher(with crappy in-close eye sight)so I've got comfortable doing it this way. Cheers, Roy