Shazam! I wonder if there was a pierced primer or if the brass case split open on the side of the body. The rear sight assembly is still correct for a 1920 National Match rifle. The cocking piece is a replacement. The color case hardened cut off might be one of those aquired from Rock Island for the 1920 National Match rifles because Springfield had a difficult time coming up with enough because their prodution of Cut Offs at that time were for the Mark I 1903's that were being produced. The butt plate is correct. The trigger is a replacement (should be serrated). Of course the front sight was replaced. The stock and hand guard look correct. The barrel looks to be original to the receiver. Safety looks correct. I can't tell what type bolt there is without seeing the stamping on the safety lug. Any marks there?
It looks to be a 1920 National Match rifle that fell into hard times.