This is a Featherweight profile barrel chambered in .243 Winchester. There are two additional holes drilled and threaded just behind the rear dovetail.
Bluing and Metal - The bluing shows some thinning and there is some freckling. There are a few scratches, particularly around the rear sight dovetail.
Bore - 7/10 - The bore has some throat erosion and minor pitting. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE