While I believe the round shoots well (considering 115 grain Berger at about 3400 fps) out to 800 yards as a hunting rifle, I doubt that it carries enough energy to be useful for anything larger than deer and I'd hold the range for deer at around 500 yards or less. It's not, IMO, suitable for larger game like Elk unless your working with ranges less than 200 yards. Even then IMO it's too small a cartridge to use for an animal of that size.
Keep in mind that my bias as a hunter is to limit long range "hunting" to calibers of 7mm (.284) or greater. That view is not universally popular but i get nauseous when i read or hear about hunters using smaller calibers at very long range.