I don't see the 338 Fed or 358 having a thing over 308. A 308 will shoot the same bullet weights as 338 Fed within 50 fps. It'll shoot 220's at about the same speed as the 358 shoots 250's , and that is at the muzzle. Get 100 yards or farther down range and the 308 starts taking over. That is pretty much splitting hairs, especially when you consider the better penetration of the smaller bullet. If the 308 won't get the job done, then it is time to move up to a lot bigger gun than 338 fed or 358 won.
The only advantage 358 or 338 has over 308 is between between the ears of the shooter. Usually caused by people who don't understand that you really can shoot bullets heavier than 150 gr in a 308.
