This is a .243 Win target barrel that has been rechambered 6mm/.284 Win wildcat cartridge (.284 Win cartridge necked down to 6mm to work with the .243 bore). The barrel was originally manufactured in 1956. It is 26" in length.
Bluing - 95% - This barrel shows very minor bluing wear.
Metal - Overall, this barrel is in very good condition. There are some very minor scratches throughout the barrel, but there are no notable nicks or other forms of metal damage.
Bore - 7/10 - The bore shows some minor signs of wear. The rifling is still bright and smooth for the length of the barrel. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE