Mineral turpentine as opposed to turpentine oil
Turpentine oil as used by artists is relatively expensive compared to the mineral substitute, (Although they are not really similar). Turpentine Oil mixed with boiled linseed oil and a little beeswax then gently simmered in a pot til it darkens to taste. makes a good old style Oil finish for wood. You must simmer it over a low heat, outside. the fumes will permeate the building if you do it inside and you will be very unpopular. It is inclined to catch fire while it is cooking so have a lid ready to cover the pot and extinguish it if it does.
For firearms and furniture where you want a glow not a shine.
A small amount on a cloth rubber then lots of elbow grease repeated daily for a few weeks and you will be amazed….. I said a (Small amount) rubbed in until its gone for each coat. It is fairly waterproof and can take a shower or two without discolouring like shellac. The wood will glow.
Oh and don't leave the used cloth rubbers lying around the workshop, Its rare but they can spontaneously combust.
Apart from cleaning paint brushes a good use for mineral turpentine is removing the sticky residue left by the labels suppliers insist on plastering all over goods, some are quite hard to get off.
Regards
John