I am also very interested in a cold weather lube. The American Soap Journal and Manufacturing Chemist notes that most mink oil is actually skunk oil. Since the two animals originate from the same family of animals, I seriously doubt that it really makes any difference. However, mink (skunk) oil is acidic and can therefore corrode metal. Again, this normally makes no difference since black powder is also very acidic. When we clean the gun with soapy water for storage, this removes the acid and the soapy water actually neutralizes the acid. However, this may become an important issue for long term storage of a ML. That is, we probably should not use an acidic oil or acidic anything that coats the barrel interior for an extended period of time.
From what I am reading, beeswax looks like it has great qualities. Additionally, peanut oil is highly temperature resistant. So I'm wondering if a combination of the two may offer the right consistency that can be used for patches and maybe even for storage?
I am certainly no expert on patch lubes or long term storage of an ML. I'm just reading up on them and trying to look at the chemical properties of the numerous approaches. It looks like there are many good alternatives, and I'm hoping to find a great combination for hot and cold weather that will also preserve the gun for storage.