Back home I could not wait to try my new cleaner. Since it was a first, I was a little hesitant to put my expensive gun barrels in it but then remembered a rusty almost junk local made Beretta 92fs barrel lying around. I had wasted a few hours on this barrel some time back trying to clean it using all conventional methods of rust removal / cleaning like hot water & soap, diesel, rust remover, mitti ki tail, Hoppes, WD40, gun oil and brass brushes but all had failed. I thought what better and more difficult test could I put to my new Ultrasonic cleaner. The pictures explain the rest:
The Ultrasonic Cleaner:



The offending and completely rusted barrel:



Ultrasonic Cleaner filled with Water and Cleaning Liquid:

Cleaning Liquid Make and Specs:

Ready to start cleaning:
The cleaner was set for a default of 3 minutes and I wanted to give the barrel atleast 15 minutes of cleaning time before I took it out. Five runs later I took the barrel out not knowing what to expect. At first glance I was surprised at how clean the barrel looked and felt from outside. As I lifted it some rust poured out of the barrel into the cloth I was holding it with, I looked inside the barrel and was more than surprised. Ran two clean patches though the barrel with a barrel brush and here are the results.
The patches:

Can you believe this ??? I was stunned and absolutely amazed !



Conclusion:
What more can I say, Ultrasonic cleaning really works. What I could not do in 4/5 hours of wasted time, effort and supplies the little Ultrasonic cleaner did in 15 minutes of humming

The future of gun cleaning is Ultrasonic, I have become a huge fan of it and would go so far as to say that it is a 'MUST HAVE' for anyone wishing to call himself a gun enthusiast ! Get one !!