As for being lost? Done that myself in the snow and it is not fun especially if it is dark. Now I carry a Garmin GPS to be safe. I hunt some big woods and as you guys know, if it is dark and cloudy all the trees look the same.
With the Garmin I can navigate right back to my truck without ever looking up. And I can mark my deer and go right to it without putting 100 pieces of tissue out while trying to remember where I am at.
As far as hunting in the snow. We count on half the hunting days being snow. Here in Northeast Ohio it is a given.
Therefore I purchased an Omega with Weathershield and it works great. I also have flip up caps for my Nikon Omega BDC 300 Scope.
Whether I am driving deer through snow filled brush, or sitting all day in the sleet or snow, there is never a problem with rust. I do keep a latex glove over the end of the bore.
D