Welcome to the GTA. As for the surface rust, I think I read in one of the threads on this forum, to wax the barrel (and I'm assuming other exposed steel surfaces) to prevent rust. I know that in your local climate, that can be a real problem. Good luck, and I'm sure someone who knows much more than I will be along soon to answer your questions.
Welcome to the GTA . .22 BC? I've yet to see one in person. The CDT trigger will help increase your enjoyment of the BC.And surface rust on shooters? The only thing that works for me is to wipe them down at least on a monthly basis. And run a patch through the barrel at the same time. I lived on the beach in FLA, so I know the rust problems you face.anyway, again , Welcome.