I would contact Browning directly and see if they have any in stock. I would also look at Boyd's rifle stocks and see if they have any reproductions that would fit your Browning.
Any good stock maker.
Caramelise.
YEs
Those imported into the US with the Browning name (since 1956) have had varnished and later polyurethane stocks. Early guns with the FN markings had oil finish stocks.
No
No data available
No
Send it to a Browning authorized repair center.
Same as Winchester Models 150 (uncheckered stocks), or 250 (checkered stocks). Values range according to condition and checkering. In very good condition probably around $110 - $130.
Between 1966 and 1972, the Morton Salt Company sold Browning a new salt method of "speed drying" walnut blanks when Browning's ability to provide kiln-dried wood couldn't keep up with demand. There was a down side to this process. It yielded a good many salt-filled stocks and/or forearms that resulted in rusting metal surfaces where there was wood/metal contact.
Sometimes they will within a particular model.
Browning did not use salt, their supplier did. Check any item made before 1976