The biggest issue with bolt actions in the cold is making sure that you aren't carrying a decades worth of thickened grease, dirt, and the original packing grease around inside the bolt body. Once everything is clean the particular gun oil you pick wont matter as much. Most bolts have never been stripped.
Yes!
I have seen a bolt striker take about a second to fall, in cold wx. Swished it around in some gas and then it was perfect. Grease and little bits of brass came out.
After washing clean, a thin film of G96 or CLP protects against condensation and rust.





























I think I have enough to pass on to the next five generetions of the family.






















