I don't know about the US Army but when WWII started the Marine Corps grabbed all the 1903NM's they could find and converted them
to sniper rifles. Then they grabbed all the Star Gauged barrels they could find and fitted them to 1903 receivers for their own use. The polished bolts and rear sights were removed and replaced with parked ones. Some had 8X scopes mounted, others didn't.
Trying to figure out where a 80 year old Military gun has been is like hitting the Lotto.