I think what you say is true as I believe the same but it doe's happen, making them suspect, same for 8mm Rem Mag, should be awesome but, wrong bullets & bad shooting in both, story of a guides live !
8X57 good, great if reloaded, .280 is great also (if you don't like recoil, big .30's are better for these jobs IMO) & strangely the 270 Weatherby has been a wonder killer, Deer-Antelope die like lighting, must have the bullet matching the speed on this one !