This is a .30-06 Springfield standard barrel from a Winchester Model 70 rifle. There is no date marking, later barrels were not date-stamped, but it came off of a 1961 receiver.
Bluing - 90% - The bluing is in very good condition, with just a few worn spots.
Metal - Overall, the metal is in excellent condition; there is no notable metal damage.
Bore - 9/10 - The bore has very little wear, almost none, and no notable pitting. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE