I couldn't recall off the top of my head so I just checked the MSDSs at a few places online and see that Pure Tung Oil and Raw linseed oilicon both have flash points listed at over 230.

I use a cheap candy making thermometer and heat in a stainless steel bowl to about 125 degrees. I use an inexpensive hotplate and do this all outdoors.

I cut open a big garbage bag and then drive a 3 to 4 foot length of rebar a foot or so into the ground right in the middle of the bag. This will protect your lawn, as drops of heated oil will kill grass. I place the stock on the rebar, luckily Garandicon and 03 Stocks both have nice lightening and tool storage recesses in the butt. This will position the stock at an easy to work level and give you full access to brush with the exception of the very end of the butt.

Then I heat the oil and brush it on liberally. Get it everywhere, inside, outside, all over it. Let it rest at least 30 minutes, then grab a wad of paper towels and wipe it dry. Wipe it down a few times over the course of the day. Ideally by that evening, you don't have much (if any) to wipe off. The used paper towels can be a combustion hazard, so watch out. Since I use Raw Linseed Oil and Pure Tung Oil, I usually burn the oil soaked paper towels on my grill, eliminating any worry. You can't do that with BLOicon safely due to the chemical hardeners.

I give the stock a few days to rest, and check daily to wipe down any that is seeping out. If you get any spots that look like the oil has glazed over (mainly seen when using Tung Oil) use some synthetic steel wool or the finest sandpaper you used on the stock to get rid of that spot.

Next, several repeated hand rubbings and you are on the way to a very nice looking stock via a more practical (for the hobbyist) modification of the original processes using the original materials.

I'll try to post a few photos of new stocks I have done tomorrow.

-Patrick