Boris,Thanks for a great report. I'm very impressed with SBGO also. I have always used light weapons oil to coat the metal on all my firearms. Not anymore.
I put a couple of drops on a shaving brush and coat all metal surfaces on the weapon. It stays......no worry about rust, fingerprints,etc. After shooting in the rain or handling any firearm, just wipe it down with a soft cloth. Good stuff.
Jack, I was going to coat some metal and leave it out in the rain also. You beat me to it. I did coat some bolt threads and screw the nuts on. I'll check them in a few weeks. At this point, I'm confident they will come loose with no problem.
I can honestly recommend Silver Bullet Gun Oil. It works.
Thanks for making this giveway possible.