I pulled my rifle apart and coated wood and metal with Johnsons Floor Wax (paste). Never a bit of rust no matter how wet the weather (most of the time) or salty the air (all the time).
I can vouch for that. I started the Johnsons wax 5 or so years ago on a 94 Win. thuty - thuty. Striped it & cleaned it of all traces of oil & then coated every part with Johnsons wax, it is also acting as the lube. No trouble, no rust, easy clean & wipe over more wax & polish off excess. Rained in sweated on & carried on the dirt bike hot & cold, proved the value of Johnsons wax to me.
I now use no oil on my guns. just some moly engine assembly grease on sears & hinge pin.
Happy happy happy.
O.M
