.30-40 krag
30-06
With the serial number provided,your springfield model 1898 krag,was made in the year 1899.
All U.S. army springfield rifles were chambered in 30-06 caliber.
probably 30/06 unless the barrel was changed.............
1934-1935 They were on limited production.
Your model 1898 krag was made by springfield armory in 1899.
Your springfield armory model 1903 springfield rifle was made in 1932.
It's part of the cartridge name. 30 caliber designed in 1906 by the US Armory at Springfield.
Model 1911a1
your springfield 1911 was made in 1914
your springfield model 1903 was made in 1920.
about 1914