I agree with Heinz, put a wear plate on the forearm. Back in the day, a gunsmith had way to much time invested in a gunstock to pitch it just because he made a error in the early construction, of uncovered a bark inclusion, or a mineral streak. I own a percussion half stock that was in my possession for a lot of years before I discovered that the gunsmith that built it uncovered a bark inclusion in the buttshock sometime during its construction, and made such a nice matching plug for it that it remained his secret until the finish cracked a little bit around the plug, a hundred and fifty years later. Back then it was called craftsmanship, today its called finding a workaround.
Hungry Horse