This is a .270 Winchester featherweight barrel with a #7 sight ramp. Barrels made after 1956 do not have a date stamp, but the #7 sight ramp tells us this barrel was produced between the years of 1959 and 1963.
Bluing - 98% - The barrel shows almost no signs of wear
Metal - Overall, this barrel is in excellent condition.
Bore - 8/10 - The bore shows minimal signs of wear. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE