When the law allows you to shoot game with a 223, and the 223 bullets are now very good, why would you have a 7 Mag?
Most of the guys I hunted with in AK used the 30-06, 308 and 223, in that order.
Couple of the guys used 300 WM and 338 WM, but "downsized"" as they got older and got the same or better results with less recoil.
