Yeah, next old rifle I buy, am making sure I get another with the same stock so that I can saw it in half after using it as a "practice board".
??? You don't have scraps of walnut where you live? Doing a test board is, like, Finishing 101.
More like a prerequisite for High School Wood Shop back in the day...
Sad when someone was mislead and insists on passing bad info on. Even when good info, and an easy route to proving it, is available.