I quit using solvents a number of years ago for general cleaning and switched to Kroil. I have several 442's and they look pretty much like new except for the cylinder turn ring. I run a soaked patch through the bore and chambers and the let the gun sit for an hour. I then use a stiff wire-handle nylon bristle brush to scrub the bore and chambers. After that I hit all of the surfaces in the frame window and the ratchet with a GI "toothbrush". A few clean, dry patches through the bore and chambers, a quick wipe down of the gun with a clean rag and I'm done. Every now and then I have some leading. I take strands from a COPPER "Chore Bore" scrub pad and wrap them around a worn wire-handle nylon brush. This quickly removes the leading. I don't use Kroil as a lubricant but it works great for cleaning.
Best Regards,
ADP3