QUOTE(Yuri_xxx @ Jun 25 2022, 19:14)
A 9mm does not have enough energy to really do anything to a bear even if your using HP rounds.
The stories of 9mm killing a bear exhibit survivorship bias. In some cases, 9mm FMJ penetrated deeply into a bear and struck a vital organ. In other cases, the defender didn't get lucky, and just became a missing person. When they cull aggressive bears, they often find handgun slugs buried under the skin.
It was also a silly comparison because you wouldn't use the same ammunition. It would be hardcast lead or FMJ for bears, where you need to reach more deeply, and JHP for humans, where overpenetration doesn't do you any good.
The real point of the discussion was that people may overestimate 10mm for bear defense. It only has 23% more frontal area than 9mm. Unlike rifle bullets, pistol slugs aren't travelling fast enough to do damage outside the permanent wound channel, so energy doesn't matter by itself, only the diameter & depth of the wound channel. Full-power 10mm hardcast rounds are less likely to get deflected by a rib, but it's still acupuncturing a bear.
On the other hand, going back to the human, 10mm hollowpoints are engineered to use the energy expanding more and make a bigger hole. There's a whole spectrum of expansion vs penetration to choose from,
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This post has been edited by Necromusume: Jun 26 2022, 03:48
What was the last thing you thought?, general edition
Jun 25 2022, 23:42
