This is a .270 Winchester standard barrel manufactured in 1951.
Bluing - 95% - The bluing on this barrel shows almost no wear.
Metal - Overall, this barrel is in excellent condition. There are some very minor scratches and nicks but no significant damage to the metal.
Bore - 7/10 - The bore shows some signs of wear. The rifling is bright and still clearly defined, but there are some small spots of light pitting throughout the barrel and minor throat erosion. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE