I'll leave the dings and bruises in the stocks for the most part , but I'll still give it a good cleaning however .
The proper finish on Lee Enfields and many mil-surps is Boiled Linseed Oil . Others may be finished with
shellac , ( not polyurethane).Whether it's BLO or shellac , it's hard to beat a hand rubbed finish for a pleasing final result.
Since you work with wood , you know that once too much has been taken off , you'll never get it back on .
Sandpaper is a no-no . Save any stamps / numbers that are in the stocks.
I like using a scotchbrite pad which will get into some of those dings and clean out the guck .
I've taken furniture stripper ( for antiques and again using a scotchbrite pad ) to varnished stocks , re-BLO'd and found a gem of a rifle even tho the dings are still there .
I have extra military and bubba'd stocks for my No4 for whatever I have the feel for., whether it's on the wall ,at the range or hunting.
Here's an example . These picts are of the same rifle...
Original
Sniper mode
Sniper/Hunter
BuckSlayer