As Stan said, "the faster they leave the muzzle the faster they slow down". The physics of it is this: drag quadruples as speed doubles. In other words, if the speed of shot is doubled then the drag forces against it is four times greater. At distances most game or clays are shot this negates much of the benefit of increased speed. I hold all of my reloads to 1200 fps or slower and enjoy superb killing patterns and penetration even at extended range.

John McCain is my war hero.