+1 on what Jim said. I usually don't get the accuracy with factory ammo that I get with hand loads tuned to the rifle. Sometimes you get lucky. Turns out my factory 6mm Creedmoor 26" barrel shoots sub 0.5" MOA at 100 and 200 yards with tuned hand loads. Turned out Hornady Black label factory ammo with the same 105 gr BTHP Match bullet gave similar sub 0.5" MOA accuracy.