First off... I hate shining things on hunting rifles.
That said, I live in the coastal mountains in Oregon and the humidity here is horrible. Anything not well oiled will rust. Indoors or outdoors. For that reason and that reason alone I'm slowly switching to Stainless.
If you're worried about rust well on a hunting trip just keep your gun well oiled and cleaned and it won't be a problem.
Boomer
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