I don't know what it should be but the guys at Fort Bragg are shooting 1/7 twist, 10 inch barrels, suppressed and hitting Pepper Poppers at 900 yards with 87 grain .223 projectiles. That's 1-1.25 MOA. I'd guess 1.5-2MOA with quality optics and a good rest from a 7.5 inch barrel, but that's only a guess.