I just pulled it out and its a BF code which shows 1940-41.......so the bolt is not original

The reciever, barrel, and stock are all 1931 - my biggest question is how did it not get rebuilt in WW11 (later barrel and C stock).

I have seen a ton of early 1903's wearing WW11 dated barrels, it seems odd this example could get thru WW11 with its 1931 tube?