This is a .300 H&H magnum bull barrel manufactured in 1949.
Bluing - 95% - This barrel shows minimal bluing loss. The bluing has begun to fade slightly, but there are no marks of significant bluing wear.
Metal - This barrel is in excellent overall condition. There are some very minor nicks in the metal, but no significant scratches or other forms of metal damage.
Bore - 6/10 - The borescope reveals some light pitting in spots throughout the bore.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE