I don't actually agree with his hypothesis on what kills. Having killed plenty in the last 45 years with many different cartridges and generally finding little difference between different cartridges killing power. If you bullet expands and penetrates properly, hits a vital area then you will have to gut and clean the animal you shot with it.
One problem with discussing different calibers or bullets, is people who say the animal is just as dead. No [bleep]. 22 LR works too.
For me, how far it goes is a huge consideration, I don't care if it is just as dead at ### yards as 1.
