There is no difference in how fast the animal goes to the ground due to a well-placed bullet from either big 7mm. Two heavy bodied White tail bucks hit with 140gn Game King and 150gn Scirocco, respectively, had their legs fold and plop on the ground as the bullets hit rib, lung, then deflected up and wipped out the spine. Odd wounding sequence for sure but it happened twice. The Game King came from a 7mm Rem. The Scirocco came from the Wby.