The impact energy was close to 3000 foot-pounds, but the bullet wasn't making a permanent wound channel through enough vital tissue. And as far as the zebra was concerned, the "shock wave" didn't exist.
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JB, That's a great example and reminder of how unimpressive "energy" alone can be. There is really nothing like seeing a hundred something -or more- pound animal absorb "tremendous" energy to realize the huge difference between using shoulder fired rifles to blow up small critters (like PDs) and humanely killing bigger game. (I have sometimes wondered just what it would take to actually "PD" and animal the size of a deer or bigger. I'm certain I don't want to fire such a weapon from the shoulder though!) And, neither recoil nor muzzle blast impress target species in the least either I've noticed, another phenomenon which some folks seem to get side-tracked by.
Sometimes, the air you 'let in'matters less than the air you 'let out'.
