I think that many of us have read of the shortage of 03 Springfields in the US Army at the time of our entry in WW1, and the use of the 1917 rifle and even Krags to ameliorate that shortage.
I find the attached picture, from the New York State Naval Militia website, very interesting. Apparently, there were enough '03 rifles, in certain cases, so that they could be issued not just to the Navy, but to a state naval reserve unit. The other equipment the sailor is furnished with is also interesting. Unless they were planning on landing parties in France, why would a sailor need a canteen and haversack?
There was a lot of irony in the way our Government worked back then, too.Naval_Militia_Bugler_NGM-v31-p346.jpg