This is a .30-06 Springfield standard barrel from a 1956 Model 70 rifle. The barrel appears to have been previously reblued.
Bluing - The barrel appears to have been polished and reblued. The bluing is dark and in very good condition.
Metal - This barrel is in excellent condition, with no notable scratches, dings, or other damage.
Bore - 9+/10 - The bore is near-perfect; barely fired. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE