I own a .223, Remington 12 gauge, Remington .270, chinese sks and a 30.06.
The sks has killed people too! The sks is the AK47's older brother and I love shooting it. the basic design is really similar and when I shot an AK it didn't feel much different. So I would highly suggest the AK (or even sks) if you're looking for a good cheap, fun rifle.