This is a Winchester pre-64 Model 70 standard barrel. The manufacturing year falls between 1957 and 1963, based on the #7 18-lines sight ramp.
Bluing - 98% - The bluing is in excellent condition, with no signs of wear or fading.
Metal - Overall, this barrel is in excellent condition. There are no notable scratches or other marks of metal damage throughout the barrel.
Bore - 9/10 - The bore is in excellent condition, with no notable rifling wear throughout the length of the bore.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE