Here is a reply by a guy who is apparently a dentist who owns one:
Quote:
Works for the dentists and it'll work for you.
Actually, I am a dentist and have had quite a few instruments damaged by the ultrasonic cleaner. I keep using it anyway because it is a time and cost effective way to clean stuff like dental cements and restorative materials from simple instruments that are durable and don't require disassembly. I would never put something like a dental handpiece (drill) in the ultrasonic cleaner unless I wanted to destroy the bearings in three seconds flat. It may work with a gun if the precision surfaces, typically the hammer and sear engagement, are either not touching or are held together tightly enough that they won't be peened by the ultrasonic action. If it works for you, fine, but I wouldn't try it on a gun I like very much.
My normal cleaning procedure involves Ed's Red; without disassembly I spray the gun where it's dirty, brush those areas, run a bore snake through the barrel, blow everything out with compressed air and wipe with a shop rag or paper towel. That works very well for the ordinarily dirty gun and takes less than five minutes. Lead fouling takes a piece of copper scouring pad wrapped around a bore brush and works quickly and easily. Jacket fouling gets treated with WipeOut; easy, but you have to let it soak a while. Berryman ChemDip works very well for cleaning a carbon-encrusted AR-15 bolt and carrier.
I never let my guns get so dirty that I would be tempted to use an ultrasonic cleaner. I can see, however, that if you are a gunsmith, armorer, or range operator that you might have to clean some really filthy guns repeatedly and would want to minimize the time involved. I would be inclined to use a parts washer and compressed air. In an eight hour day you could clean a lot of nasty guns while doing other work and without wasting much time or labor. I must admit, though, that if somebody gives you a gun that is clogged with filth and expects you to clean it because they don't have the time, inclination, and skill, that they probably wouldn't notice a creepy trigger induced by an ultrasonic bath. Poetic justice.