Some barrel markings as found on NM 1903 barrels, the steel heat lot code as found on this SA 7-29 barrel is C 128 which was a code used on 1918 Rock island barrel blanks. The left over unused barrels blanks plus all the other parts and stocks were sent to Springfield in 1926. This barrel was gaged and had a good enough reading to make it into a NM Springfield July 1929 barrel. Besides
the C 128 heat lot number there is also the gage card number too, muzzle has the star stamp
the C 128 heat lot number there is also the gage card number too, muzzle has the star stamp