Can we discuss handgun caliber and hollow points?

I was interested in this topic a while back so I searched through older posts and similar threads on other sites. Everyone says the same thing regarding hollow points in particular on the forums, but they never have any evidence. It's always the "common sense" argument that an expanding bullet will cause more damage and incapacitate quicker. They also reference the luckygunner tests. However, even the FBI report that they occasionally cite, when arguing in favor of 9mm, refutes this argument. Coroners, medical examiners, and surgeons apparently CANNOT tell the difference between permanent wound channels caused by FMJ or JHP. JHP is shown to cause a larger temporary cavity, but the permanent cavity when compared to FMJ is virtually indistinguishable. The permanent cavity is the one that matters because a temporary one just returns to normal after being forced out of place. Also, when comparing caliber effectiveness, the report only favors larger calibers due to penetration ability, not increased surface area. There is also the issue of something that many refer to as hydro static shock. The same FBI report refutes this as a plausible means of incapacitation with handgun rounds. The reasoning is that handgun bullets are far too slow, even with higher powder loads, to cause this phenomenon. Rifle rounds travel at least 2-3x as fast, and that is why the shock wave that is produced can harm surrounding structures that are not directly impacted. Even with rifle rounds, the report states that this shock wave is generally not effective without fragmentation of the bullet. I also didn't agree with the "transferring kinetic energy" argument that is frequently brought up with JHP. A 10lb weight dropped from the height of 1.37 inches equals the impact from a .45. A toddler could deliver a greater impact with a solid kick. This isn't taking into account the fact that a .45 pokes a hole in you, obviously. Anyways, there's no way that energy transfer and impact should even be a part of any reasonable discussion. Thoughts? via /r/CCW http://ift.tt/2j6Awzp