This is a .270 Winchester standard barrel manufactured in 1952.
Bluing - 90% - This barrel shows minimal bluing loss, with no significant fading or wear of the bluing.
Metal - This barrel is in very good overall condition. There are some minor nicks and scratches in various spots throughout the barrel, but no forms of significant metal damage.
Bore - 7/10 - The borescope reveals some signs of rifling wear, but no pitting or significant bore damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE