This is a Featherweight barrel for a pre 64 Winchester model 70 rifle, chambered for the .264 Winchester Magnum cartridge.
Bluing and Metal - 90% - This bluing on this barrel is in very good condition, dark and even but with a series of worn spots along the top. There are no other notable scratches, dings, rust, freckling or other damage.
Bore - 7/10 - The bore has no throat wear but has notable pitting. Borescope verified.