This is a .30-06 Springfield standard barrel from a 1957 Model 70 rifle.
Bluing - 100% - This barrel has been reblued with a very dark finish.
Metal - Overall, this barrel is in excellent condition. There are no significant scratches, nicks, or other marks of metal damage.
Bore - 7/10 - The bore shows some signs of wear but still plenty of life remaining. The rifling is bright and smooth throughout the length of the barrel and the throat is good. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE