This is a .270 Winchester standard barrel from a 1951 Model 70 rifle.
Bluing - 85% - The bluing on this barrel has some wear, including at the muzzle and a worn spot on the top of the barrel, mid-way.
Metal - Overall, this barrel is in very good condition. There are some light scratches from the rear sight, a small ding on the bottom of the barrel, but no rust, freckling or other notable damage.
Bore - 8/10 - The bore has some light wear in the throat, but no pitting. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE