There is no debate here...only confusion about what numbers APPEAR to mean.

A devastating wound channel doesn't help if it only penetrates deep enough to make wide but shallow crater...no matter how devastated the flesh of that shallow crater.

Energy at the muzzle doesn't necessarily corelate to energy at the animals vitals.......
This ain't rocket science...just a little math and a lot of first hand post-mortems will help you more that all the ballistics tables in the world.