Its TUNG oil. And you don't know how to use RLO judging by the comments. RLO is SPARINGLY applied to the wood using a small cloth like a rifle cleaning patch. It is absorbed by the wood fairly quickly and there's no long wait for 'polymerization' because that doesn't happen - it just continues to permeate the wood. You can cut RLO with turpentine which is the way I like to use it and it absorbs even quicker. You can use BLO if you wish to have 'surface polymerization' or 'varnish' and this is another ideal case for cutting with Turpentine.
On a nice show stock, I would use 'Arrow Stock oil' which is something else you need to learn how to use. In a nutshell, you begin the job by working it into a small section of the stock with #100 wet/dry paper. It takes just a minute for it to begin to get gummy, finally you realize that's all you can do at that spot. You continue this until you do the whole piece of wood, then move up to #600 and do it again. You continue in this fashion until you get to #1200 or so, then change to the bare hand. By this time its beginning to look like it was dipped in glass, and its a perfect finish that no spray can or brush job can equal. Its a labor of love but when its done you can't take your eyes off the stock.
For a more matte but still transparent finish like on a fine hunting gun, you can put BLO on a piece of #0000 steel wool and rub the wood 'dry', repeating to build up the thickness, only one round a day.
