Next time I shoot at an elk at 555 yards, I'll have to see what is in my magazine.
This 130g Barnes Triple Shock, TSX bullet was recovered from a cow elk near the hide in the rear of a hind quarter. This shot was from a 270 WSM, Model 1885 at 555 yards with a muzzle velocity of 3400 FPS. At this range and an altitude of 7,000 feet the impact velocity was somewhere near 2350 FPS. This bullet went from a shoulder in the front end to a hind quarter on the opposite side passing through and crushing the femur in the hind quarter. This was the first shot and although the elk was messed up she didn't appear to be falling over anytime soon so I sent a second shot through both front shoulders and out the other side and she dropped.
He is also putting a lot of faith in his ballistics program.