Good article John. It goes well with the mono bullet discussion. I have heard this before, but never can quite bring myself to do it because of one thing, meat loss. I am a meat hunter, and depend on deer for my meat supply for the year. Having inadvertently hit the front shoulder before, I saw how much damage a bullet can do when you add bone fragments to the mix. And I really do not like throwing away an entire front shoulder. But this got me thinking, with a hard cast bullet with a wide flat meplat, meat damage should be minimal. But would the effect be as dramatic? Sorry to bring cast into the mix!! I plan on using a 358 Winchester this year with a 230 grain cast bullet with target velocity of 2100 fps.
I guess basically what i am asking is how much does velocity affect this quick killing. Most of the examples you gave involve velocity of 2500fps +. Have you seen many examples of slow moving/heavy projectiles breaking the shoulders, and were the results as instantaneous? I am thinking that my above mentioned bullet will do a good job of drilling through both shoulders of a white-tail, but I am not sure it has enough speed to produce the shock that a fast moving, expanding bullet will have.