My buddy Keith, used the Barnes 120gr. X bullet on moose, from his P-14 in 6.5x68. His muzzle velocity was around 3,350fps. He once shot a cow moose just below the "white spot" at 300yards lasered distance. The bullet stopped under the skin of the brisket. She braced her feet, then collapsed.
That my friends, is penetration with a light-for-caliber bullet. The bullet lost all 4 petals, yet still went end to end on that moose.