This is a .270 Win. standard barrel from a 1953 Model 70 rifle.
Bluing and Metal - The bluing on this barrel is generally dark and even but it has some light freckling and rubbed areas. There are no deep dings or gouges.
Bore - The bore has a mix of throat wear, heat cracking, and pits; enough of each to rate a 7 out of 10. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE