Personally, I use BLO primarily because a lot of my milsurps are British or American. Have some tru-oil, tung oil, and some custom oil based stains, etc. that I have used an a case by case basis.
I will soon be experimenting and practising with the DeanDallas pine tar method as he has adeptly explained in other postings on two old dried out Swedish Mauser 38 stocks that had chipped buttstocks, etc. that I have fixed.
BTW, for those looking for a gentle stripper of cruddy finishes such as poly or varnish, try Soygel. It is gentle on the wood, soybean oil based, and low toxicity. It is slow however but has little if no toxicity and no odor. Rockler and others have carried it in the past or you could buy it direct.