Heavy and Slow or Light and Fast?

[Dozer]

I believe that the kinetic energy is the part that does the clothing penetration, and the bullet design determines the expansion. In many cases, the JHP will not expand after filling the hollow point with layers of cloth. The FMJ, on the other hand, is not designed to expand, just to make holes. There is a new breed of bullets on the forefront of design today: they expand reliably in soft tissue after passing through several layers of clothing. Hornady Critical Defense (Hornady is one of those.

[ltxi]

Zena...as Dozer noted, it's not quite as simple as FMJ vs HP. And bullet weight, within reason, isn't primary. Without going into great length on the subject.....given the same powder charge and weight, FMJ provides penetration. HPs such as HydraShok strike a good balance between penetration and expansion in tissue, but can become clogged by heavy outerwear and function pretty much as a FMJ. Later/current design bullets such as Gold Dot and Federal HST are designed to overcome the initial barrier issue a/r and then still expand as necessary in tissue.

So, yes.....climate change is, or used to be, a consideration. Not so much anymore.