This is an undated .30-06 Springfield standard barrel from Model 70 rifle. Based on the #6 front ramp, it was probably produced between 1955 and 1957.
Bluing - Reblued - This barrel has been reblued and has no finish wear. The bluing is dark and even.
Metal - Overall, this barrel is in excellent condition. There are a no significant marks of metal damage.
Bore - 9/10 - With almost no throat wear and only a few small scattered pits this bore rates a 9 out of 10. Borescope verified.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE