I have a hunted with one 4-5 times (I kept saying next time it will work out). And as much as I tried to, I didn't like it.
Altough it is useable at 100 yards or less for the purpose.
The AK is a great fighting gun but for hunting it is a little lacking.
Reasons:
If I'm going to carry a 9# rifle I would rather pack my Remingtion 700 that has better accuracy, range, and iron sights.
Loud saftey switch that once ruined a shot for me (Spooked a Doe that was about 75-85 yards from me)
At dusk when the deer and hogs start coming out from hiding, The iron sights dissapear.
I love my AK and shoot it a lot but I don't hunt with it anymore. (I also mounted a reflex sight on a ultimak rail and it made the rifle nightime friendly)