In May of 2004 I took a 9,3x62 CZ 550 American and a .416 Rigby CZ 550 Safari Mag to RSA. Took Impala, ,Warthog, Kudu, and Zebra with the 9,3 and a Gemsbok with the .416.
The 9,3 is bone stock. The Rigby has been bedded with an extra recoil lug and crossbolts. (I recommend that for a .375 too.)
These rifles are terrific for the real deal. They just work.
If you're going to Africa the 9,3 is fine in some countries and some require a .375 for dangerous game. The .375 is bigger than the 9,3 which is just a very handy little rifle. Ammunition for both calibers was available there though I took my own handloads.
For plains game at reasonable ranges and for anything in North America at the same reasonable ranges the 9,3x62 is very, very effective. We recovered no bullets ... everything passed through. Everything but the Kudu as a one shot, drop on the spot affair. Amazing to see a Zebra drop on his knees! The Kudu had obviously not read "the perfect shot." Extraordinary animal with a huge will to live ... He graces my trophy room on a pedestal mount that is richly deserved.
No way you can go wrong with the CZs!
mike