This is a 24" .30-06 standard barrel from a 1951 Model 70 rifle.
Bluing - 95% - The bluing on this barrel shows minimal signs of wear. There are a few very minor marks but nothing noteworthy.
Metal - Overall, this barrel is in excellent condition. There are a few very minor scratches and nicks, but no significant metal damage.
Bore - 8/10 - The bore shows little sign of wear. The rifling is bright and smooth and there is no pitting, erosion or other problems in the bore. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE