What the others have said - I haven’t met any “inaccurate” 9422s and have had or been around dozens of the things (certainly not saying they aren’t out there but typically they shoot very well). Mine have varied dramatically ammo to ammo and lot to lot within ammo but have usually found some that they liked and often ones that they really liked. Relining wouldn’t guarantee accuracy anyway…….my thought would be to not reline. Now if the rifling is worn from poor cleaning or badly pitted then I’d consider it a candidate for a reline……FWIW.

PennDog