I purchased a new Savage model 11 7mm-08 and could not get it to group used Hornady, Federal and Remington ammo.
Sent the rifle back to Savage on my dime, they looked at it. Told me that they polished the chamber do to burrs and cleaned the barrel as it was copper fouled. I cleaned the rifle and inspected with a bore light and didn't note any copper fouling. They then fire tested it at their 100 yard range and said it passed their testing and will ship it back to me the first of next week.
My question is, how would the chamber affect accuracy or would it have any affect?
Jeff