A Question For Firearms Experts & Enthusiasts...?
Question:I have a limited knowledge of the reactivity of bullets, and I need a little information in regards to hollowpoint bullets. The question is: would a jacketed hollowpoint bullet, 9mm, 185-gr. fired at a range of 30 yards (or 30 meters) "mushroom" upon impact with human flesh, such as skin, fatty tissue, and muscle, or would it need to strike bone in order to deform the slug?
Any help is truly appreciated.
First, the heaviest 9mm pistol bullet on the market, to my recollection, is 147 grains. Loading such a heavy bullet in a 9mm case would be dangerous since generating sufficient velocity would probably create an over-pressure cartridge.
In theory, a hollow point will open up or mushroom when it contacts flesh. However, this is not always the case because of the alloys and how the bullet may be constructed. Back at the time of the infamous FBI/Miami shoot out Winchester had put out a lot of silver tip ammo that did not expand and functioned as full metal jacketed ammo.
Typically, the lighter bullet (115 or 124 grain) loads at higher velocities have proven more effective in the 9mm.
They test all sorts of ammo against different mediums to see what happens. But to answer your question, a good quality jacketed hollowpoint bullet will begin to expand upon contact with soft tissue. If it is large and heavy enough, and still moving with good velocity, more than likely it will shatter most bones that get in it's way.
Check out the Box O' Truth, though, they got cool stuff.
I will say that this applies to premium ammunition only as many ammo makers still have cheaper hollowpoint ammunition that is not as reliable as far as expansion goes.
At a range of 30 meters so long as there is nothing like heavy clothing or a leather jacket to penetrate I would expect any of the premium 9MM to expand. Most would be in the 115 or 124 grain class. Federal Hydra-Shok, Speer Gold Dot, Remington Sabre, or Winchester STX would all fall into this class.
Let us know how the book comes out!
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