The 9.3x62 is a very popular round in Europe and in Africa. It holds the distinction of being allowed by several African Countries for Dangerous game despite a .375" minimum for DG. It's "grandfathered" in for a reason; its THAT good.
The diameter is .366" , the case is slightly larger than a .30-06 case. So case capacity IS a bit more than a standard 06 case. Bullet weights from 231 to 300+ grains are available. Factory ammo here in the USA IS a bit slim, but that will probably change as this round, thanks to CZ chambering it, is becoming more popular. I saw several factory offerings in South Africa in 2000, as its still popular over there.
Nosler makes a 250 ballistic tip and a 286 grain partition. Speer does a 270 gr soft point. Barnes does a few X bullets; 250 and 286 grain. Norma does a few lightweights a 231 and a 232 grain, as well as the traditional 286 grain slugs. Swift also does their A-Frame in 9.3mm.
Cases are available from Norma as well as GRAF's. One can also fireform 9.3x62's from .35 Whelan or even regular 06 brass. Case life is no better or worse than any 06 based round at this operating pressure.
Dies are available from Redding, RCBS and possibly from LEE. I have heard that LEE did a small run for one of the discount houses,possibly GRAFS or MIDWAY. My Reddings have worked flawlessly.
From a 22 or 23 inch barrel the 286's can be driven to 2400+ fps, the 270 Speer to near that and the 250's an easy 2500+ fps . In a world of 3000+ fps hunting rounds these figures appear pretty tame. But the 9.3x62 is IMHO one of those rounds like the 250 savage, ,257 Roberts, 7mm-08/7mm Mauser, .338-06 and a few others that perform much better than their paper ballistics tell us they should.
Why? In a word; "penetration". You have a LONG, slow moving slug of fairly large diameter. It penetrates deep and STRAIGHT, like a .375 H&H. I've shot a lot of game with the 300 grain partitions and Swift A-Frames in the old three seven five. The 286 partitions and the 300 gr .375" are almost identical in sectional density ; .305 vs .307. Hence the deep penetration.
The 9.3x62 will ruin a lot less meat too than most higher velocity hunting rounds.
I have a CZ 550 with the european style stock. Mine shoots VERY well, with 1 1/2" groups at 100 yds with IRON SIGHTS pretty much an average.
Recoil is NOT bad at all. One has to remember that the stock design,butt thickness, cast on/cast off, etc. ALL enter into perceived recoil. Your average M94 hurts worse than a well stocked .30-06 or .300 Win mag. The CZ 550 stock does a good job of mitigating recoil. Recoil velocity is also slow as the bullets velocity is moderate. A PUSH more than a SLAP.
For the recoil shy hunter the 9.3x62 IS a better choice for the big stuff than a .375" as they will probably PLACE their rounds better due to the lighter recoil and muzzle blast.
For the occasional plains game hunt in Africa or a NA game round to be used on the big stuff; elk,moose and the big bears, with proper bullets, it will surely get the job done. I'm talking out to moderate ranges; say 300 yds. Like the .375 its NO long range round but few of us should be shooting at ANY game animal past 300 yds anyway.
FN in MT