I have hunted with an sks. A 7.62x39 bullet should be fine out to 200yds, maybe a little further. The problem is whether or not the rifle is accurate enough to take a 200yd shot. A bolt action cz in 7.62x39 is accurate enough. Ak's are a different matter. You may be limited to about 75 yds or less. In addition to them not being the most accurate rifles, scope mounting is unreliable and sloppy.