The United States Rifle, Caliber .30, M1917, developed at the Royal Small Arms Factory in Middlesex.
When the United States prepared for WWI, there were shortages of the m1903 Springfield. The '03 manufacturing was not able to keep up with U.S. demand for armaments.
The U.S. companies of Remington, Winchester, and the Remington-Eddystone Arsenal, had just completed contracts for m1914 Enfields, for England and were able to retool the existing manufacturing facilities to produce the m1914 in 30-06. Thus the m1917 was born.
Phased out at as the primary U.S. battle rifle the end of WWI and replaced by the m1903. Still carried in service during WWII and distributed to allies post WWII.