I have seen more than a few M1917 US Enfields at gun shows that close on a field gauge. Most likely someone set the barrel back and set the headspace perfect. You got a nice shooter. There are plenty of M1917 at shows, but bring a FIELD 30-06 headspace gauge and bore light if you are going to drop $1000 plus for a correct rifle so the bayonet fits and it is still a good shooter. Lots of older guys are down sizing due to age and health. Last week at the West Bend WI show there was a nice one priced at $1200. It seemed intact with correct cartouches. Remington I believe??? I liked them when they were $400.
Prices be crazy now...
There was a Winchester at $1800, too pricy to even handle. I just looked and walked by. A nice 1954 Polish Tok say a $300 pistol for $675 and US GI 45 autos in the $3000 range. You got to be a young guy with a great job to get nice stuff in todays market. It was kind of funny, Mosins at $400-500 and that is stuff I paid $49-79.
Actually as that M1917 sits no one at a CMPshoot would see any difference. It might be a tack driver.