This is a .270 Winchester featherweight barrel from a 1955 Winchester Model 70 rifle.
Bluing - 90% - The bluing on this barrel shows some light spots of wear.
Metal - Overall, this barrel is in excellent condition.
Bore - 7/10 - The bore shows some signs of wear. The rifling is bright and still clearly defined. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE