If you wanted a “cold hard-use” rifle made anywhere (I know you don’t but others might), maybe this:
T3x ARCTIC (
wiki)
“The rifles are mainly used for self-defence against large North American carnivores like polar bears, and for personal survival as regional surveillance missions are often conducted for extended periods in remote areas, requiring the Rangers to hunt for food. Further the rifles are expected to operate in temperatures ranging from −51 to 39 °C (−60 to 102 °F) with moderate to high humidity and be resistant to corrosion from long-term exposure to salt laden air and water.”
I have no personal experience with this rifle. I do know extreme cold breaks all kinds of “tough” things (I’ve lived in ND/MN, record low in MN is -60F). I’ve dealt with -92F windchills; in these conditions the less exposed metal on a tool, the better.
People keep bringing up AI, and now me, so I’ll shut up now. Back to reg sch programming.
Edit: for polar bear & grizzly, I’d sure want more than a .308/6.5CM/7.62x51!!! Shot placement be damned. But shooting a rabbit/deer with a .375 H&H would sure make MOAR of a mess of things. Trade offs…