H.P. steel jacket 7.62 X 39 does a lousey job of expanding.
If it does anything at all it will simply break up. Still, who wants to get shot with a Chi-Com rifle in the first place.
If the sucker hits bone, the bone will shatter sending shards of bone material thru out the boogymans body simply ruining his whole day.
The only saving grace to an AK is the fact that it can't be made to stop shooting.
It is minute of soldier accurate to 100 yards. Good 'nuff.
Your gun is a tool;your weapon is between your ears, use that one first!