Quoted:
I shot a large 8 point in the chest with wolf hp once. I will never hunt with it again. It did not tumble, it did not expand, it didn't even fragment at 30 yards. It just punched a 30 cal. hole in the deer from its chest to its ass. Made a mess inside but the deer suffered badly. However, I think you would be fine with the winchester power points. I killed a deer with win. power points this year, in a .308 bolt gun. It expanded well and the deer died quickly.
Was it a Wolf Military Classic HP or a Wolf Performance HP? The WPHP is known to act like FMJ, but the WMCHP is supposed to fragment pretty reliably.
http://ammo.ar15.com/project/Self_Defense_Ammo_FAQ/index.htm#7.62x39
Quoted:
Dpx is the only premium .310 bullet I know of that is readily available in loaded form.
I was under the impression that the Winchester Super-X was the correct diameter as well? I tried some Remington soft point (only thing available locally) and it was terribly inaccurate, I measured it at .308 so I'm sure that didn't help. But the two boxes of Winchester (one really old white and orange, one new silver box) I have both measure around .310 or .311 inches.
ETA: the four deer I have taken with my AK, three were with Super-X (one shot stop) and one was with the inaccurate Remington SP (all I could get that first year) and it took three shots (shoulder blade, neck, and finally eye to finish it off). The wound profiles looked like FMJ.