Brian-- Thanks for info. The "W" "2-17" marked barrel with the ordnance bomb stamped out is interesting to say the least. There was a "compatibility" issue with the most early Winchesters due to jumping the gun on production before the US Ordnance drawings can be finalized. The barrel would not match the receiver based on the date given. It probably should be a 2-18. Compatibility between the three manufacturers were not achieved until January 1918. The stock is an Eddystock made stock. The safety is probably either a Remington or Winchester which are marked on the inside. The safety was probably not removed from receiver during the rebuild process as they are a pain in a rear to get back in. I found the M1917 rifles to shoot great with flat based bullets. I have been using NOE 314198 cast gas check .310 sized bullet with 13.0 grains of Longshot to great effect at 100 yards. Thanks again for the info and good luck with your rifle.