I was pondering that finish for my next build should there be one. I've done 20 or so pine tar finishes on Finnish rifles when I was collecting them. I used SWIX brand pine tar (ski shops or online). Strip the wood with citrus stripper, rub in the PT with the little brass brush or old toothbrush, let sit a day or two, use turp damp rag to remove excess, repeat as desired. When thoroughly dry, coat with 1/3 mix (turpentine, beeswax and linseed oil) and buff. NO original finish Finnish rifles were touched, only those Finnish rifles that had been altered by Bubba and his close cousin Goober. :thumbsup:
PS on the occaision you may aquire a finnish rifle and it has a campfire scent about it, guess what that is?