Keep in mind that muzzle velocity is just that: Muzzle velocity. No one shoots an animal just off the muzzle. Most of your average hunting bullets out of your average hunting rifles are only traveling 2000fps or less at 500yds. Much less at greater yardages. Berger even states their bullet was designed for target shooting.
A good hunting bullet needs to expand and hold together for enough penetration to do damage to all vital organs in the bullet's path. This needs to happen at 35 yds and at long distances. It also needs to happen from quartering angles. My experience with cup/core, non-bonded bullet designs are that they seem to work best on game after their velocity has been slowed down and the shot is broadside into the chest cavity. I've had more than my share of bad luck with close shots(under 200 yds) that fragmented way to fast leaving a wounded animal that took a lot of trailng and another shot or two.
I do not have this troulble with any of today's bonded bullets or solid copper expanding bullets. One shot kills are not just the norm for today's bonded core or solid expanding bullets, it's a fact.
Also, most of us do not have an entire team of camera men, guides, spotters etc keeping an eye on the animal and where it went like the Best of the West or whatever does. Nor are we getting paid by a given bullet company to go hunting like they are.