There is another consideration in play here.
These bullets are engineered to expand reliably at .30-30 velocities, (2200-2400 FPS)
At .30-06 velocity (2800--2950 FPS) they may come apart on impact.
And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.