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Long Range Hunting & Shooting
Larger diameter bullets allow more room for error?
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<blockquote data-quote="dfanonymous" data-source="post: 1540870" data-attributes="member: 97050"><p>I feel everyone has touched major concepts on this but the information is so scrambled no one is making sense of anything. I mean, just to answer the op question, a larger cross section in bullet diameter is going to damage more tissue, because it has a larger cross section. For you guys getting off topic and throw expanding rounds into play, as long as the bullet design works, a fully expanded projectile will leave a bigger hole after the first inch or so because, again, there's a larger cross section. </p><p></p><p>The issue you run into is that a larger cross section will have more resistance in a medium (tissue) (people) (deer) (grandma) as it passes through all the things it needs too. This can be chalked into the 9mm v .45 acp defensive ammo. But before that, let's get into the other stuff.</p><p></p><p>So we've discover resistance in larger cross sections, but that doesn't really tell us anything in practicality. That's because we are missing a cartridges efficiency and a bullets weight, and design. I want to put aside the design issues because i am biased with that as most people are. A heavier bullet will have more momentum then a lighter bullet in the same FPS range, often time a much heavier bullet will have more momentum then a faster lighter bullet whereas a lighter super fast bullet will give tissue shock. It has a particular look to it, it's usually the stuff on a deer you cut away.</p><p>You hydrostatic shock is compression of organs and blood from energy transfer from USUALLY a expanding bullet. The heavier AND faster the more KE and thus the more hydrostatic shock you will get and the more likely you will shut down the CNS on a first round impact.</p><p>No reason to get into SD and BCs. While they help, it's "help" is really only helping maintain a projectiles proficiency during its external travel. </p><p></p><p>The next consideration is the medium it's self. Those of you that shot deer, humans, elk and lastly wild hogs....did you use a anything less than a .26 cal? I mention this because in thicker muscle and higher density in bone, that momentum really does make a difference. Bullet performance can vary depending on design, but the fact is you'll need to offset to a extremely fast cartridge using a lighter bullet to get out of what you get with a 2700 FPS 230 gr will give you in terms of penetration. This is in example, those numbers are orbitrary, so be calm. </p><p></p><p>So as for a margin of error, I'll use the example of center broadside shooting a deer. Right of the lungs but left of the guts, and having an immediate drop. Your only shot of achieving this is to create enough hydrostatic shock to disrupt CNS functions to create immediate death. As said before, some thing heavy and fast. However as far as the actual hole created from a larger diameter, the odds increased less than 20% in cutting alone. I mean it would just be the luck of the bullets impact vs which anatomy in makes contact with. The luck could be measured by a lighter bullet caliber in inches subtracted by a larger diameter bullet in inches difference in inches equals your margin of error plus shot placement to anatomy. </p><p></p><p>None of which can be intelligently or predictably be accounted for based off diameter alone.</p></blockquote><p></p>
[QUOTE="dfanonymous, post: 1540870, member: 97050"] I feel everyone has touched major concepts on this but the information is so scrambled no one is making sense of anything. I mean, just to answer the op question, a larger cross section in bullet diameter is going to damage more tissue, because it has a larger cross section. For you guys getting off topic and throw expanding rounds into play, as long as the bullet design works, a fully expanded projectile will leave a bigger hole after the first inch or so because, again, there’s a larger cross section. The issue you run into is that a larger cross section will have more resistance in a medium (tissue) (people) (deer) (grandma) as it passes through all the things it needs too. This can be chalked into the 9mm v .45 acp defensive ammo. But before that, let’s get into the other stuff. So we've discover resistance in larger cross sections, but that doesn’t really tell us anything in practicality. That’s because we are missing a cartridges efficiency and a bullets weight, and design. I want to put aside the design issues because i am biased with that as most people are. A heavier bullet will have more momentum then a lighter bullet in the same FPS range, often time a much heavier bullet will have more momentum then a faster lighter bullet whereas a lighter super fast bullet will give tissue shock. It has a particular look to it, it’s usually the stuff on a deer you cut away. You hydrostatic shock is compression of organs and blood from energy transfer from USUALLY a expanding bullet. The heavier AND faster the more KE and thus the more hydrostatic shock you will get and the more likely you will shut down the CNS on a first round impact. No reason to get into SD and BCs. While they help, it’s “help” is really only helping maintain a projectiles proficiency during its external travel. The next consideration is the medium it’s self. Those of you that shot deer, humans, elk and lastly wild hogs....did you use a anything less than a .26 cal? I mention this because in thicker muscle and higher density in bone, that momentum really does make a difference. Bullet performance can vary depending on design, but the fact is you’ll need to offset to a extremely fast cartridge using a lighter bullet to get out of what you get with a 2700 FPS 230 gr will give you in terms of penetration. This is in example, those numbers are orbitrary, so be calm. So as for a margin of error, I’ll use the example of center broadside shooting a deer. Right of the lungs but left of the guts, and having an immediate drop. Your only shot of achieving this is to create enough hydrostatic shock to disrupt CNS functions to create immediate death. As said before, some thing heavy and fast. However as far as the actual hole created from a larger diameter, the odds increased less than 20% in cutting alone. I mean it would just be the luck of the bullets impact vs which anatomy in makes contact with. The luck could be measured by a lighter bullet caliber in inches subtracted by a larger diameter bullet in inches difference in inches equals your margin of error plus shot placement to anatomy. None of which can be intelligently or predictably be accounted for based off diameter alone. [/QUOTE]
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Larger diameter bullets allow more room for error?
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