I would tend to use that more on the metal parts of, say, a pistol collection, rather than routinely used guns. Or maybe to help protect hidden areas, under the stock, of a gun that gets used in bad weather. It has to be applied carefully and very sparingly to avoid build-up. Though a wax is fine on wood, it won’t do much for it if the base finish is lacking in the first place. I still prefer natural waxes for woods, but that is of course down to individual choice.