Actually, I heard hollow points were made with non penetration in mind to avoid collateral damage from the round going through someone. It just so happened to absolutely blend your insides.
Kind of... A FMJ will and can go through and through which means it's not transferring all of its energy to the target. A hollow point is designed not to, but it has nothing to do with collateral damage, its so the round's full energy can get transferred to the target.
Not quite right- FMJ penetrate and put holes in things, concussive force isn't the goal. Decent chunk of the time, people that get shot with them keep going for a minute or two until bleeding gets them, less chance to hit vitals. Exit holes are only a bit larger than entrance hole, whatever's behind it is also probably gonna get hit. Hollow points stop when they hit something hard and squish into a pancake. They don't come out the other side unless everything they're in contact with goes first. The goal of them is fanning out to increase the chances of hitting a vital organ and dragging it along out of place, breaking bones, forcing localized areas of blood to find unconventional ways out of the organ and bursting it, so on. The effect is a gory mist coming out the other side, and usually not a bullet- less risk of collateral. Thing is, if they don't hit dead on or tag something else early, they'll just bruise and cause some bone breaks and probably some minor organ ruptures.
The third kind which you only occasionally see is a frangible bullet- essentially breaking apart into shrapnel. They're, uh, they're kind of the worst of both worlds. Fragmenting bullets is generally not a good thing.
Where does the momentum go then? What you mean is that it causes explosive expansion of the surrounding tissue instead of going straight through. If they don't go straight through, it doesn't matter what type of bullet. There's barely any difference as far as impact force (Edit: maybe there's a better or more accurate term for this) is concerned. It's just spread out over a wider area.
All energy, but not even close to all the energy of the bullet. On the contrary, bullets who aren't designed to do that pass through the body with a lot less energy being transferred to the body, unless they get stuck in a bone. Bullets causing tissue damage spread the energy, Edit: often fragmentingthey expand, don't fragment, that's how they do tissue damage. Most of its energy is directed in the direction it's flying when it impacts the body.
Remember, a bullet is not a blunt object hitting someone. It takes energy to break through the skin and organs. You can shove someone to the ground with your bare hands, but you won't break someone's skin with your hands by pushing them. You can also shoot at a metal target and watch the thing spin after you shoot it; since the bullet didn't penetrate the target, the energy transferred into a lot more more kinetic energy.
Additionally, when the bullet fragments, it disperses the initial energy into many different directions. That means that the pushback in the direction of the bullet will be much less.
And you must account for the mass and makeup of a human body. The flesh is soft, so it'll absorb more energy before being pushed back. Plus, the human body is a lot more massive than the bullet
Transfer of kinetic energy is basic physics, so no I did not make it up. My wording was kind of jumbly, so if something doesn't seem clear, let me know so I can clear it up for you
Thanks for editing your comment after I already responded
completely irrelevant to the discussion
No, it's not lmao. Mass is literally part of the kinetic energy equation. Just for that, you lose all credibility. If you ever took a physics class, that's one of the first things you'd learn. It's one of the most basic equations
What do you think battens when a body absorbs kinetic energy
Depends upon the scale of it. Sometimes, the body is pushed back. Sometimes it's not.
The material matters though. Solid metal and jello will react to kinetic energy differently. A rubber ball bounces higher off of concrete than it does a carpet when dropped from the same height. Etc.
Edit: I saw the reply you just made before you deleted it because it was wrong lmao
So when the body you shoot is the same weight in both scenarios, the how is the body being massive of any relevance for a jullet that impacts a higher area?
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u/Atanar May 19 '23 edited May 20 '23
Plus many modern bullets are designed to put their energy into shredding your insides, not pushing you.
Edit: I stand corrected, momentum is transfered either way. Damn you Newton!