Here is a link to there barrel warranty(?) that may be helpful: https://www.shawcustombarrels.com/barrels/warranty-information-/190
Poster on another forum ran a borescope through his new Savage and found what appears to be a gouge that runs the circumference of the bore about an inch from the muzzle.
Honestly, that's terrible. I wouldn't use anything like that. Years ago, back in the 80's, I believe it was Numrich had a sale on blued Savage barrels real cheap. I bought one and it looked just like. A guy I knew wanted it. I told him what it looked like, showed him, he still wanted it. Ok. I never would've considered using it.