Fill the pot with raw linseed, place the lid on top, turn temperature to high, let cook at least 24 hours, cool, decant to a tightly stoppered container. It will be a little slower oxidizing than litharge boiled oil, but far superior to commercial boiled. Litharge can no longer be used as it is a liquid form of lead and unavailable. Aqua Fortis stained maple stocks will turn green if exposed to too much sunlight. Like laying for days on a trade blanket.
Mordant dyes are more permanent.
Pigments are permanent colors. The oil is rubbed in aided by the warmth of your hand, the oil can be pre-warmed in a dish of hot water before application to aid penetration. How much of a shine is entirely up to you. On a well sanded stock hand rubbing oil will result in a nice luster finish. If a high shine is desired, read on.