Yes I agree. But dead is dead and humane killing is what we are all after. The higher velocities and bullets you refer to are not hard-cast as my comments were grounded and referring to as to velocity limits or more readily capable without deformation, up to 1400 fps. But I digress.
Go in peace and run your special made bullet types as fast as you can. More Power to You!! But I will push only so far and concentrate not on pure velocity but rather more weight and unquestionable bullet construction integrity for the velocities I address.