If one looks at the results of one lot of ammo being used in all sorts of chamber dimensions and a wide spread of how far the bullet jumps into the lands, maybe they'll not be all that concerned. At the National Matches when a single lot of Lake City arsenal match ammo was issued, it would shoot under 6 inches all day long in good service rifles rebuilt with match grade barrels. To do that, the ammo has to shoot under 1/3 inch at 100 yards.
US Navy Distinguished Marksman Badge 153
Former US Navy & Palma Rifle Team Member
NRA High Power Master & Long Range High Master
NRA Smallbore Prone Master