Okay, I was not going to weigh in on this topic............however, for 600+ meter shooting on game the size of elk and moose the 6.5 is NOT adequate. You cannot foresee all the things that can happen even during the time of flight, an animal can turn, it can take a step, a gust of wind can move the bullet somewhat off course, etc. If you really want to kill game beyond 600 mtrs then use a cartridge designed for it in a caliber appropriate to the size of the animal being shot at. This starts at 7mm in my opinion and goes up from there, the 7 RUM and 300 RUM or 300 Wby are perfect choices for this type of hunting and shooting and arrive with enough authority to cleanly harvest animals in this size class. I think the 6.5s are fine up to sheep, goats, deer and caribou sized animals but when stepping up to the notoriously tough elk and the huge bulk and muscle and bone of moose I think there are way more appropriate cartridges for shooting at them beyond 600 mtrs. Even for use on sheep, goats and the like I would certainly lean way more towards the 264 WM, the 26 Nosler or Weatherby's new entry the 6.5-300 Wby for 600+ mtr hunting. I would not even consider the 6.5 Creed, 260 Rem or 6.5X55 for this type of hunting and shooting, I know they work on paper with the right scope and at defined distances with wind flags, but they are NOT 600 mtr hunting cartridges. Just because a bullet will reach out that far and put a satisfying hole in a piece of paper, does not necessarily mean it will do what needs to be done to cleanly harvest an animal at the greatly diminished velocity with which it will be striking flesh and bone. Besides why, when there are 10 better cartridges to do this with !!!!!