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01-07-2020, 13:28 #11
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02-07-2020, 00:53 #12
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Re: Animals that drop on the spot DRT
i my medical opinion and yes I have testified in court on the matter as specialist witness as follow:
Any blunt object entering the cranial fault or hitting it with sufficient energy to cause the brain to bump against the skull with enough force to cause lost of consciousness will cause a direct drop to the floor. This can be achieved by being either heavy and slow- a boxer's fist or fast and light- a .22lr at point blank range. If needed a Joule energy needed to be achieved this can be calculated.
Penetrating the cranial fault energy requirements depends on the specific skull involve's thickness and the shot placement. I have seen a air rifle pellet penetrating the eye and killing a human, versus examine a criminal with a 5.56x45 bullet sliding over the skull of an armed robber with no effect to him.
Death is a medical diagnosis- in Spain this last winter they revived a British Citizen- Audrey Schoeman after 6 hours of hypothermia and lost of spontaneous circulation with a good neurological function- she walked out of the hospital.
To cause an mammal to die at cellular level means the oxygen in the mitocondria have dropped to a level low enough not to be able to continue to sustain cellular homeostasis. This means normally a ph of less than 6.7 in a adult and lactate of 14 and more, causing the cell to die.
The triade of death in any mammal is acidosis, hypoxia and hypothermia. The hypoxia can cause lost of consciousness and so can hypothermia.
Many a hunter have been killed by animals that dropped down to the ground and the at a later stage jump up to either trample, bite or stab with their horns. My explanation for this is lost of consciousness brought on by a shot that did not cause the brain to bump hard enough against the cranial fault and or spinal shots that caused only neuropraxia or transient lost of nerve conduction- such as a shot to the vertebrae with a bullet at low impact energy.
Messor, my 416 Remington with 5400 ft-lbs or 350 grain at 2650 feet per second will kill more using the principal of energy transfer and shot placement.
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02-07-2020, 01:07 #13
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Re: Animals that drop on the spot DRT
What is the velocity at 1500 meters- not 2900 ft/s.
The only online calculator I got went to 500 yards- 1606 ft/s and 1288ft-lbs.
http://gundata.org/ballistic-calculator/
I suspect at 1500 meters or 1640 yards Messors bullet will have .45acp point blank range energy.
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02-07-2020, 20:38 #14
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- Vereeniging
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Re: Animals that drop on the spot DRT
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02-07-2020, 21:08 #15
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- Pretoria
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03-07-2020, 01:47 #16
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- Nov 2011
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- Bloemfontein-RSA
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Re: Animals that drop on the spot DRT
I agree, vapour trail shows impact much higher than the "shoulder" he aimed for. DRT due to spinal cord injury. He might have dropped right there, but not so sure about dead right there.
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03-07-2020, 05:37 #17
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