For the wood; Once the finish is well cured simply wipe the stock down to remove grit and powder residue then apply a coat or two of wax a few times a year. A microcrystalline wax is good.
Some wax their barrels also, I put a thin coat of gun oil on mine after each cleaning. From the posts here in ALR I have gathered that there is some controversy over what finish guns had back in the day. Some contend that guns were sold in the white and that the browning we see today is the result of natural aging, some say the browning came on the new gun - I think it was both ways as there are period advertisements stating that the gunmaker offered various finishes including a brown finish. In any case browning is done both for the look and as a finish on metal in the sense that the metal has been pre-rusted. One has several options for treating the metal on a gun, you can leave metal in the white, fire blue it, brown, boil blue it or create a French Gray sort of finish. All of these except leaving it in the white are rusting processes which are done both for looks and as a preservative - the browning aids in preventing further, uncontrolled, rust. Some contemporary makers take the browning to an extreme in order to "age" a gun.
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