I like Tung, but I've been fooled into buying "Tung Oil Finishes" that are actually polyurethane with some Tung in it. Do'h! But what I do, and takes much more time is to first stain, and then start rubbing in different types of pure oil, walnut oil, grapeseed, anything I can find around the house and garage, etc., everyday. Hand rubbed in with the fingers. With great VIGOR!!! After a week or so I can take it outdoors, if it's not rainy. I'll do that for a few weeks and then go to Danish oil, and rub that in vigorously once a week for a couple months. That requires drying time of course. However, I've found that Danish oil will still absorb other oils after the fact, so for six months or so I'll give it oil treatments over the Danish once or twice a month, with some light application of the Danish. And, the stock will be good to go/hunt in that condition. In about a year, I get a really nice waterproof old-timey oil finish that can't be beat.
But, yeah...time consuming, labor intensive, and final results take a about year. And it never ends. Once in a while I'll still work it over. Worth it to me, but few people want to spend a year refinishing a stock!!
Oh yeah, on some guns I'm not going to do that. I'll do some kind of "quicky", like on my Rossi, or the TC, Savage 24-V, etc. The true hand-rubbed finishes above I've done on my JM Marlin, my Jeager, Brown Bess and my '61 Springfield.
Right now I'm doing a finish on a butt stock I got from Macon Gunstocks (absolutely gorgeous wood, will match the for-end perfectly when I'm done) for a J. Stevens M44/falling block with just a wiping stain, and Danish. It's coming out really beautiful. But I give credit to the quality of the wood, rather than me.
I've had good luck mixing a little bit of "Tru-Oil" (not true at all) in with other oils, cutting it. For me that makes a nicer finish than "Tru-Oil" alone, which I am in no way impressed with. Makes drying time longer, but...so what? I set the stock or rifle next to a heater vent, and forget about it. Go play with another gun!