Forgive me if I chuckled a little, my range is 800 yards. I haven't worked my rifle (Howa 300 WM) out that far, I'm only to 700 so far (that's 13 minutes on the elevation turret.)
What is it your trying to hit? Depending on your rifles, both rounds should easily shoot 100 yards. I've shot rabbits over 200 yards with a bolt action .223. I have no experience with the AK. I hear accuracy isn't really their thing.