I do believe reloading is a crucial practice if you want to be really functional with a .338 RCM, though, because I don't much care for the few factory varieties being produced. I'm getting really good loads with Re 15 powder pushing 185 and 210 TSX's and 200 gr Hornady Interlocks.
Dennis
Unlike Dennis, I DO like the factory ammo. The 225 grain SST load took down the biggest black bear I've ever shot instantly. The bear will make the book, and a story on the hunt will run the May issue of Petersen's Hunting. Hornady, by the way, has now added a 185-grain GMX load to the lineup. Haven't tried that yet.
While there's nothing wrong with the factory ammo in my book, Dennis is the guy to talk to re. reloading for the 338 RCM.
One thing we do agree on is our mutual fondness for the 338 RCM. I would have no qualms taking anything on this continent with the 338 RCM, though my first choice for brownies/grizzlies would be something a tad heavier.
