RE: 9,3x62 or 338 Win Mag
I've hunted brown bears with both the .338 mag., and 9.3x74R. The 74R can be handloaded up a bit inmodern gun as it's underloaded at the factory, and that puts it in the same light as the 62.
Both are fine calibers, but i'd take the .338 because of much better bullet choises. With proper bullets, both are bigger than you need for bears. My bullet choise would be 250 NP's as i've used them, and also seen how they work on big bears.
BTW, I use to mfg. and sell .366 bonded bullets, but i still always liked the Nosler partition 338's better.
Drilling Man