1000FP? Who knows? Does energy matter? Not necessarily, or no one or no thing would have ever died from an arrow. More correctly, momentum does matter. A projectile must have enough momentum to penetrate to the proper organs to cause enough damage to cease function within a reasonably short time period. Take 45 bullets, one of 200gr and another of 400gr, both fired at 1000fps. At short range, both are deadly. To embellish a little, at 100 yards, you almost stop the 200gr with a catchers mitt, but with the 400gr you are still in serious danger behind a heavy wooden door, simply because the 400gr RETAINS its momentum better. Then you confuse things more with the construction of the bullet. At the same weight and velocity, the soft point and the full metal jacket have the same enery, but we all know which would normally be the most destructive. Energy, pre se, is an unreliable indicator of cartridge performance.