I'm still more interested in muzzle energy. If you can get 10,000 ft/lbs from a .50bmg, deriving it more from velocity than from mass, then why injure yourself for those same 10,000 ft/lbs from a lower velocity, higher mass projectile-firing rifle. I assume there is no game on this planet, legal or otherwise that a .50 cannot take... GIven that fact, why not opt for the longer range, better accuracy of a faster-moving round?