WHAT DOES SIERRA GAMECHANGER 6.5 CREEDMOOR MEAN?

I have existed a lot of who have created a similar claims about 140+ grains of Eld-X and Berger (forgot which) bullets from a 6.5 Creedmoor for hunting. Way too many deer to run off and in no way located or tracked for extensive distances.Increase in ammunition desire proceeds to exceed supply for distinct calibers and box dimensions, particularly