Gamblins raw linseed oil. Cold pressed and supposedly no heat or chemicals used to make it. Cutting it with turpentine allows it to penetrate the wood. Most people now days don’t have heated dipping tanks to emerse wood in then let hang dry. They are rubbing it in, so it needs cut. I have to buy cold pressed stuff off the internet or sometimes you can find it at art stores. The last bottle I bought was their smallest size, after being cut I’ve used it on several rifles and still have about 1/3 left. It will go a ways. If your a purist the type of turpentine matters to. Stand oil found in art stores will work to, however heat is used when it is made. Not a big deal to some, but to others it is. Unless your oiling a dry collector piece BLOicon will work just fine, unless it’s for hunting maybe. RLO tends to rub in, dry, and stay flat. BLOicon if rubbed in over several coats will develope a medium to high gloss. Some hunters don’t like the glossy look. Good luck.