On my disk rifle I like to pull the bolt first. Then I take the breech plug out of the barrel. I then like to take the barrel from the stock. From here I like to take the barrel without the breech plug in (along with the breech plug and bolt)to the sink. I then pour dish soap water down through the barrel. Usually about three seperate cup fulls will do the job. Then I take the breech brush that you can purchase from many stores like Cabela's. Hold the breech/barrel over the sink, dip the brush and then get that brush in there and start scrubbing. I even squirt a little dish soap in there so it really foams up. Keep dunking that brush and scrub back and fourth and twist in a clockwise direction. Inspect the threads now and they should be clean. Pour a cup of hot water or two back through the barrel and wash any soap out.
This is also a good time to have an old toothbrush, or you can purchase nylon, brassand steel brushes and clean the breech plug and bolt face at this time in the dish water. It will clean up fast. After that some solvent patches and a few Q-tips and all of that will be nice and clean as well.
Now back to the bench with all of the stuff. A few solvent swabs down the barrel, and the rifle barrel, breech threadsand bore are all clean. That same windshield washer fluid and alcohol is a good thing to use to swab the bore. Now a few dry patches and last, a good gun oil to protect everything.
Disc Rifle Cleaning?
