This is a .220 Swift standard barrel, manufactured in 1941. The barrel is made of CMS steel.
Bluing - 98% - This barrel shows almost no signs of bluing loss
Metal - Overall, this barrel is in excellent condition. There are a couple very minor scratches but no other major marks of metal damage.
Bore - 9/10 - The bore shows almost no 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