I have a Burris 4x compact on my 9.3x62 and have shot pigs on the run at 10 yards and sniped donkeys at 330 yards. Never has the scope been an issue (good or bad).

My 9.3x74 double has a 1.5x5 Leopold and it seems to live on about 4x. Not sure you need more for what the 9.3's do well.