Pure tung oil has zero shine. All M1 Garand production was pure tung oil and they have no shine. Don't confuse commercial tung oil finish with pure tung, not the same thing. There are photos of China Nut trees behind fences with signs on them No Trespassing War Production in the various books written about the M1.
BLO on the other hand is made from flax seed and it does indeed have a lot of shine when dry.
I have two M1's in my collection that are Marine Corp turn ins and some of the BLO has flaked off exposing the original Tung oil finish.
Tung oil as well as being water proof, is also poison which makes it mildew resistant. Have you ever seen a warped M1 stock? That is because the tung oil is water proof.
