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Velocity and Penetration (Read 31556 times)
Curious Aardvark
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Re: Velocity and Penetration
Reply #45 - Mar 22nd, 2008 at 12:15pm
 
[quote]if i use a football shaped object with pointed ends(I sharpened a section of a railroad spike) I found that as it comes out of a sling with the spin it flies smoothly and one of the spikes is facing my target[/quote]
Bloody hell !
Be VERY careful where you sling stuff like that. Talk about your dangerous projectiles lol.
How long a piece of railroad spike did you use ?
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Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Monkeywjcr
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Re: Velocity and Penetration
Reply #46 - Apr 2nd, 2008 at 12:09pm
 
I attacked a tank with my sling and concrete ammo and I tought it was empty but then the top opened and a guy stuck his head out and shouted at my and I ran away. jk
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If it fits in my sling and won't break DUCK!!!!!
 
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Curious Aardvark
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Re: Velocity and Penetration
Reply #47 - Apr 3rd, 2008 at 9:26am
 
[quote]I attacked a tank with my sling and concrete ammo [/quote]

Lmao - Umm, not sure there's an answer to that except to say, I have to admire your ambition if not your common sense ;-)
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Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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wannabeslinger
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Re: Velocity and Penetration
Reply #48 - Apr 3rd, 2008 at 8:00pm
 
taken from The Sling in Literature - Michael Gillelan

The velocity required for a bullet to puncture the skin is sometimes given as 163 feet per second, to break a bone 213 feet per second. Modern sling projectiles have been clocked at about 130 miles per hour, or approximately 190 feet per second. We have no reason, therefore, to doubt the testimony of the ancient medical writer Celsus, who writes (7.5):

    There is a third type of weapon that sometimes needs to be removed, a leaden bullet or rock or something similar, which breaking through the skin lodges inside in one piece. In all of these cases, the wound needs to be opened a bit wider, and what is inside must be extracted with pincers along the same pathway by which it entered.
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Tint
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Re: Velocity and Penetration
Reply #49 - Apr 5th, 2008 at 5:31am
 
Monkeywjcr wrote on Apr 2nd, 2008 at 12:09pm:
I attacked a tank with my sling and concrete ammo and I tought it was empty but then the top opened and a guy stuck his head out and shouted at my and I ran away. jk


LOL  Grin


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Yahweh Bless you in Yeshua
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Re: Velocity and Penetration
Reply #50 - Apr 11th, 2008 at 11:40pm
 
At the request of a forum member, I am reposting the following links.  I do so to prove that the biblical account of David's rock sinking 'deep into goliath's forehead' need not have been embellished.


http://video.google.com/videoplay?docid=5648598808576881556&hl=en


http://video.google.com/videoplay?docid=6333833449320039360


The rocks I sling for accuracy exercise are usually nearly the size of a closed fist and weigh in at 3 to 6 ounces.  Their velocity is usually around 150fps.  


Peace,


TS


P.S.  

http://www.metacafe.com/watch/1254949/ninja_misdirective_double_shuriken_throw/

http://www.metacafe.com/watch/1255004/3_shuriken_in_fast_succession/

http://www.metacafe.com/watch/1254983/shuriken_distance_throwing/

http://www.metacafe.com/watch/1254968/fast_easy_shuriken_throwing/

http://www.metacafe.com/watch/1254917/shuriken_throwing_splitting_the_difference...
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« Last Edit: Apr 18th, 2008 at 6:00pm by Yahweh Bless you in Yeshua »  

Blessings in Yeshua!&&
 
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Tint
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Re: Velocity and Penetration
Reply #51 - Apr 12th, 2008 at 9:11pm
 
Totally awesome shots.

Nice to hear from you again, Techstuf.
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Yahweh Bless you in Yeshua
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Matthew 11:25-30

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Re: Velocity and Penetration
Reply #52 - Apr 13th, 2008 at 4:36am
 

Hey Tint.  Thx.



TS
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Maximillion
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Re: Velocity and Penetration
Reply #53 - Apr 13th, 2008 at 2:48pm
 
the chunk of railroad spike i used was about 3 or 4 inches an was sharpened with a taper from the point to the center and back to the point, took a long time to do, but me and cheebz had already done one side in a poor attempt to make spear heads
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Ethan
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Re: Velocity and Penetration
Reply #54 - Apr 13th, 2008 at 11:37pm
 
Techstuf, I like the videos! You really show the power behind the sling when the user is competent.

I'm not sure if I'd be confident leaning them on the side of a house though...  Undecided
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"Young men go to war. Sometimes because they have to, sometimes because they want to. Always, they feel they are supposed to. This comes from the sad, layered stories of life, which over the centuries have seen courage confused with picking up arms, and cowardice confused with putting them down."&&--Mitch Albom, The Five People you meet in Heaven
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Yahweh Bless you in Yeshua
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Re: Velocity and Penetration
Reply #55 - Apr 14th, 2008 at 10:56pm
 

Yes, it does take some time to achieve consistent accuracy with heavy ammo at appreciable speed.  I no longer practice often enough to feel comfortable slinging at targets leaning against my garage.  The video was hastily edited and gave some the wrong impression.  Getting a shot of the backside to show the penetration was an afterthought and goliath was already back in place leaning against the garage.


I've been known to throw a pretty mean shuriken on occasion....I might have to throw a clip or two up soon.



TS
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Curious Aardvark
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Re: Velocity and Penetration
Reply #56 - Apr 22nd, 2008 at 8:00pm
 
[quote]I might have to throw a clip or two up soon.
[/quote]
Well go on then ;-)
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Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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slingbadger
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Re: Velocity and Penetration
Reply #57 - May 13th, 2008 at 1:23pm
 
There was another show on that tested the sling. it was another in the Mummy Forensics series.  However, this one did not bode well.

Thom Richardson, from the British Royal Armory was the slinger. His only reached 67MPH. They were trying to break a pig skull with it. As a result, the sling was regarded as ineffective. At that sped, i don't doubt it.
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The greatest of all the accomplishments of 20th cent. science has been the discovery of human ignorance  The main difference between genius and stupidity is that genius has it's limits.-Einstein   I'm getting psychic as I get older. Or is that psychotic?
 
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Curious Aardvark
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Re: Velocity and Penetration
Reply #58 - May 14th, 2008 at 7:01am
 
buncha wimps - hell we'all could have done better than that :-)
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Do All things with Honour and Generosity: Regret Nothing, Envy None, Apologise Seldom and Bow your head to No One  - works for me Smiley
 
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Re: Velocity and Penetration
Reply #59 - May 14th, 2008 at 11:36pm
 
[quote author=curious_aardvark link=1146852045/45#58 date=1210762875]buncha wimps - hell we'all could have done better than that :-) [/quote]

Without even using a sling too.
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