Thank you everyone for the replies...

Turns out the rifle is NOT a Springfield 1903 or 1903-A3, but a M 1917 Enfield, Eddystone made rifle, built in 1918. I saw as soon as it was out of the gun case, that it wasn't a Springfield.

The rifle looks in very good shape, with the barrel cut down to about 21 inches, and probably an aftermarket stock installed. I believe the stock is stamped "Leaders" near the barrel channel.

I found that the No-Go gauge did allow the bolt to fully close, but the bolt would not close on the Field gauge. I believe this shows the head space is on the long side, but still safe to shoot I am going to go over the rifle, use a copper remover to clean the bore, check everything over, and than take it to the range where I will try some Garandicon ammo that a buddy gave me. I will than examine every case to make sure everything looks o.k.. If the rifle shoots o.k., I'm going to refinsh the stock using Lacquer, and than use Cold bluing on all metal.

Does this sound Kosher?