Thanks for posting!
An alternative is M-Pro 7, which is a non-toxic weapons cleaner - it really works for barrels & cylinders - way better in my experience than anything petroleum-based.
Spray it on, let it set for a bit. Get a phosphor-bronze brush (like from Brownells), spray some M-Pro 7 on the brush, and do the same in the video as was done with the Brasso & toothbrush.
Easily removes the rings with no impact to the cylinder steel finish - no abrasives like in Brasso.
Since it’s a gun cleaner, just wipe off.
Here’s the commercial:
“Gets gun bores squeaky clean and shining but is harmless to all metal surfaces, including titanium, aluminum and stainless steel. Actually breaks down carbon so copper and lead fouling float free; completely odorless, non-flammable, non-toxic, biodegradable and environmentally safe to use. Penetrates hydrocarbon-based greases, oils (will damage oil-based stock finishes) and gun powder residues; strips the metal completely clean but leaves a thin, rust inhibiting film with no oily feel. Heat and agitation will accelerate the cleaning action. Can be used as a tank solvent. Not a lubricant.”
Awesome stuff.
If you have a titanium cylinder - do absolutely nothing about the rings. Just think of them as adding character. You will mar a titanium cylinder if you try to scrub them off. Maybe the same for steel - maybe just let the micro-buildup of the ring protect your cylinder steel ….. especially if you use the revolver regularly. Main thing is that the forcing cone surface is clean.