I think that the Ruger is a real nice gun.
But even with my dad's Remington 721 Billy Club, weather was never a problem.
I don't think that a person needs a Tupperware stock and stainless steel barrel and action to make a gun a good all around weather warrior. Most any gun that is cared for properly will shoot in even the most adverse weather conditions.
All it takes is too much oil in the bolt to make the bolt freeze up and stop working.
I had it happen once on the 721 and learned that kerosene is the best gun lubricant - not gun oil.