The NRA Sporter stock would have had two reinforcing crossbolts. It might have been a 1922 (.22 cal.) stock but I never saw a 1922 stock
with that nice of grain. The 1922 stock would have a filled hole where the butt sling swivel was removed. There would have been two holes
for screws that attached the butt sling swivel. One hole would have been used for the detachable swivel base but the other hole would
have been filled but still visible.