I looked at the accuracy of seven brands of factory-loaded .38 Spl. wadcutter ammunition: Federal, Fiocchi, Magtech, Remington, ... followed by Zero ammo at 1.76" (see the table).

6mm Creedmoor vs 25 Creedmoor: Table of Contents. The Creedmoor Clan. The 6mm Creedmoor. ... the smaller-caliber 6mm Creedmoor will have an edge in terms of wind drift with factory ammunition.