Why doesnt my M1917 Bayo fit on my M1917??

[72 usmc]

So the wood stock length with a butt plate and front barrel band on the rifle. I laid a tape from the top of the butt plate straight down the stock till I got to the end with the W cartouche. I did not measure from the heal or the middle of the butt. I placed the end of the tape at the top of the butt plate and then went straight along the stock and under the bolt handle to the front end of the wood. The tape laid out nice and straight. This measurement of the stock on the rifle is 42 3/4 inches.
The total length of the M1917 rifle from the same spot on the butt plate & under the bolt handle so the tape is flat and laid out to the end of the barrel is 46 3/8 of an inch. See photo
does that help