Here are some pics of my Dad with his 03 when he was in the reserves prior to WW II, the other guy was the Company Commander.
FYI, the 30-03 was initially loaded with a 220 grain round nose bullet at 2,300 FPS, as compared to the Krag 220 grain load at 2,000 FPS.
In response to the increased effectiveness of Mauser spitzer bullets, the military went to a 150 grain spitzer bullet at 2,800 FPS in 1906 (hence the 30-06).
In 1926 they further modified things going with a 174 grain spitzer bullet that carried better than the 150 grain bullet.
The 06 would stay in service until the introduction of the 308 in 1952.