Savage specifies that their standard barrels are good to 1.5MOA or less and target barrels 1MOA or less. Many are less. My BVSS was right at 1MOA but is getting better with 'age' :) But, as stated, you cannot buy a barrel or even have a barrel replaced by Savage (unless it is new and obviously defective).

If you want better, then plan on some elbow grease when you get the barrel. Savage posts a break in procedure that should help shorten the process. FWIW, some barrels are well below MOA right out of the box, others are not.

If you just need a barrel then the aftermarket match barrels rarely need much of a break in and can be very accurate.