+1. AK's mutilate the cases, and usually send it forwards at a 45-degree angle, ahead of the firing line. As cheap as Wolf and Tula 7.62x39 ammo is, it's neither worth it to reload nor shoot corrosive. You WILL more than burn the difference in cleaning supplies when shooting corrosive.I just went through this whole thing.
Had an AK variant, realized reloading for it was not in my best interests as finding reloadable x39 brass is pretty tough, along with collecting spent cases thrown 15' in all directions. I've since sold the AK but kept my CZ 527, and still occasionally fire some of my Lee 155gr cast bullets through it, sized to 311.
So basically, if you have an AK, don't bother reloading...just get some Wolf and call it a day.