LOL, well, Im not claiming to be good at it.
The Taurus 22 mag Titanium would be a great and light weight weapon with minimal problems from rain and moisture!
I have the Ruger 357 with the 6 inch barrel, and it is too heavy to lug around all day! It is an awesome weapon but is too heavy to lug around all day. I will probably go to the Taurus 22 mag Titanium for my fly fishing ventures into the back country!