This is a .270 Win. standard barrel from a 1952 Model 70 rifle.
Bluing - 90% - The bluing on this barrel is mostly dark and even but has a dime-sized worn spot in front of the rear sight boss, some thinning on the shank, and near the muzzle.
Metal - Overall, this barrel is in very good condition, with a small ding next to the front sight ramp but no other notable metal damage.
Bore - 8/10 - There is minor throat wear and some scattered shallow pitting. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE