This is a standard barrel from a .300 H&H Magnum Winchester Model 70 rifle. This barrel has been reblued and ported.
Bluing - 100% - The new finish on this barrel shows no signs of wear.
Metal - Overall, this barrel is in excellent condition. Under close examination, there are some very light surface defects in some spots on the barrel, but there are no notable marks of metal damage.
Bore - 8/10 - The bore shows minor signs of regular wear. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE