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Re: raining bullets

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Sam Wormley <swormley1@gmail.com> wrote:
> On 10/30/15 7:40 PM, jimp@specsol.spam.sux.com wrote:
>> RichD <r_delaney2001@yahoo.com> wrote:
>>> In Physics 101, they teach that a bullet falls at the same rate
>>> it rises, it's gravity etc.  Hence laws against firing into the sky.
>>>
>>> But in the real world, there's air resistance, in both directions.
>>> Question:  at what speed does a bullet actually hit the earth?
>>> Assume .38 Special, if it matters.
>>>
>>> --
>>> Rich
>>
>> There are several things that matter.
>>
>> It takes little thought to realize that bullets do not come down
>> at the same speed they went up.
>>
>> The muzzle velocity of most handguns is just under 1.000 ft/sec and most
>> rifles around 2,300 ft/sec. Supersonic is 1,100 ft/sec.
>>
>> Once a bullet reaches apogee, it's vertical velocity is zero and the
>> only thing accerlating it is gravity, which means bullets, like everything
>> else, have a terminal velocity on the way down that is a function of
>> the drag and mass.
>>
>> Bullets are spin stabilized so as to not tumble in flight.
>>
>> If fired straight up, they are guaranteed to tumble on the way down.
>>
>> At some angle less than straight up, they will not tumble and will
>> retain a lot velocity.
>>
>> If they tumble, they have much greater drag.
>>
>> Experiments have shown that the typical range of terminal velocities for
>> bullets is around 300 to 700 ft/sec.
>>
>> After WWI, the US Army got concerned about the troops shooting into
>> the air at those new fangled airplanes and worried that the troops
>> might wind up shooting themselves in the process.
>>
>> So in the 1920's a young junior officer named Hatcher, later General
>> Hatcher, was sent to a remote beach with troops, guns, and equipment.
>>
>> They built a steel canopy for cover and built mounts to fire a variety
>> of guns, including rifles and machine guns straight up into the air.
>>
>> After a little testing the exercise became a game to see if the troops
>> could catch the bullets in their helmets.
>>
>> If you can find the whole story it is an interesting read.
>>
>> I would not suggest anyone, well maybe one person, trying this at
>> home as a bullet at even 300 ft/sec would be a hell of a thump on
>> the head.
>>
>>
>>
> 
> 
>   Gentlemanly response from the jimp. Good.

Have you ever wondered why you are the only person who thinks I am
angry with them, spamming piece of shit?

-- 
Jim Pennino

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raining bullets RichD <r_delaney2001@yahoo.com> - 2015-10-30 16:50 -0700
  Re: raining bullets R Kym Horsell <kym@kymhorsell.com> - 2015-10-31 00:10 +0000
  Re: raining bullets Fabian Russell <root@localhost.localdomain> - 2015-10-31 00:38 +0000
  Re: raining bullets jimp@specsol.spam.sux.com - 2015-10-31 00:40 +0000
    Re: raining bullets Sam Wormley <swormley1@gmail.com> - 2015-10-30 20:13 -0500
      Re: raining bullets benj <nobody@gmail.com> - 2015-10-30 21:39 -0400
      Re: raining bullets jimp@specsol.spam.sux.com - 2015-10-31 02:19 +0000
        Re: raining bullets Sam Wormley <swormley1@gmail.com> - 2015-10-30 21:39 -0500
          Re: raining bullets jimp@specsol.spam.sux.com - 2015-10-31 03:38 +0000
  Re: raining bullets "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-31 13:02 -0700
    Re: raining bullets Double-A <double-a3@hush.com> - 2015-11-01 13:46 -0800

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