Can anyone show me a 45 mm handgun

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indy1919a4

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So this Rascal doing this Ted Talk,




is going to explain that David (Of David and Goliath fame) was a really the hombre packing all the heat on the battlefield and had the advantage in the fight. Because of the special stones used, the force of the stone hitting Goliath was the same force of a 45 mm handgun (Hey, he did the ballistics calculations).. Yeech that had to be ugly..

If you want you can skip to 7:45... unless you want to hear the whole thing. :)

No wonder poor old King Saul was crying around David after seeing that horrorshow.

350px-Saul_and_David_by_Rembrandt_Mauritshuis_621.jpg
 
Actually, I really enjoyed the talk. True, Gladwell didn't understand the dimensions of a .45, but what he said about the ancient slingers, and their value on the battlefield was fascinating.
My father used to relate a story about a boy he knew who had learned quite a bit about those ancient slings. They weren't friends. One day the boy with the sling, who was across the river and several hundred yards away started slinging rocks at my father. He was accurate enough that my father had to hide under a tractor until the boy got bored and left.
Much of the talk is speculation, but it's interesting speculation. What isn't speculation is that those old slings could be as deadly as a pistol.
 
Understanding that we are discussing different slings..... when I was a youngster around 8 or 9, my brother and his friends would travel the neighborhood creeks and rails with their BB guns. Although I had been shooting for a while, I did not have my own. What I did have, was a wrist rocket and a jar of marbles. I became so good with that thing that there was was very little that my brother and company could hit with their BB guns that I couldn’t hit harder with a marble. Those were the days.
 
When i was a boy, I made a number of slings to play with. What a simple tool. Two pieces of twine or leather thong and the tongue from an old pair of shoes. Great fun.
 
Tried doing that after seeing James Bond do it with a necktie in one of the movies. Never could figure out how it was done.
 
I made a sling in high school. I got pretty good with it. I could put some serious dents in tree stumps and plywood target backboards and I was pretty accurate with it. Well, if you consider minute of rabbit at 30 yards accurate. Actually, I never used it on rabbits but I did use rabbit targets.
 
When i was a boy, I made a number of slings to play with. What a simple tool. Two pieces of twine or leather thong and the tongue from an old pair of shoes. Great fun.

I played with them for a couple of years. I never achieved any real accuracy, I have a feeling that takes tens of thousands of throws, but man could you put some speed on a rock.
 
A Mark 19 is a 40mm but it’s a grenade launcher. Perhaps an old anti aircraft piece.?.
 
Hmmm . . . . "stopping power roughly equal to a 45 mm handgun . . . . " I'm skeptical. He also mentions that the stone traveled at ~35m/s. According to my Google-fu, that's ~115ft/sec. As best my memory serves, a .45 acp is somewhere in the neighborhood of 800-900 ft/sec and force = mass x velocity x velocity.

Am I missing something?
 
Hmmm . . . . "stopping power roughly equal to a 45 mm handgun . . . . " I'm skeptical. He also mentions that the stone traveled at ~35m/s. According to my Google-fu, that's ~115ft/sec. As best my memory serves, a .45 acp is somewhere in the neighborhood of 800-900 ft/sec and force = mass x velocity x velocity.

Am I missing something?

The stone weighed a lot more than 230 grains?
 
I would not say this is scientific testing.. But I always like someone beating up on Ballistic gel.. And you have to love the guys enthusiasm.

Warning Music can be loud...

Still think that a pistol bullet would a little better .. Especially when you add gunpowder :)




 
force = mass x velocity x velocity.
No doubt that it did, but does that make up for the difference in "velocity squared?"

According to my calculations, a rock traveling at 115fps would have to weigh 14086.96 grains (about 2 lbs.) to have the same “force” as a 230 grain bullet traveling at 900fps.
So, I don’t know. How much did the rock that David slung weigh?
 
According to my calculations, a rock traveling at 115fps would have to weigh 14086.96 grains (about 2 lbs.) to have the same “force” as a 230 grain bullet traveling at 900fps.
So, I don’t know. How much did the rock that David slung weigh?
I take it back. After doing a Google search, I'm not so sure the formula (force = mass x velocity x velocity) is correct for figuring out how much force a bullet delivers onto a target.:oops:
 
The Romans used cast lead bullets from 500gr to 1000gr in their slings, at velocities of 200 to 300 fps. Do your maths: you don't want to get hit by one of those...

The momentum of a sling shot can reach 50% to 75% of that of a hardball 230gr @ 800 fps.

Slings were serious war weapons, breaking bones, and cracking skulls. Archeological digs find heaps of sling shots placed at strategic places in ancient fortified camps, and battle chronicles describe the havoc that well-trained slingers could create on a battlefield.
 
Like several others on here I tried my hand at making slings as a kid. I made mine out of old jeans. It worked OK at short distances, I could put a mean dent in an old piece of corrugated metal at about 20 ft lol. I was always much better with rubber banded Crossman sling shots though, I couldn't tell you the amount of pigeons I killed with one of those in and around the barn. Dad gave me $2 a head, so I had a lot of incentive to get good with one!
 
The Romans used cast lead bullets from 500gr to 1000gr in their slings, at velocities of 200 to 300 fps. Do your maths: you don't want to get hit by one of those...

The momentum of a sling shot can reach 50% to 75% of that of a hardball 230gr @ 800 fps.

Slings were serious war weapons, breaking bones, and cracking skulls. Archeological digs find heaps of sling shots placed at strategic places in ancient fortified camps, and battle chronicles describe the havoc that well-trained slingers could create on a battlefield.
Well, 500g = 1.1 lbs, 1000g = 2.2 lbs, so maybe the numbers aren't that far off.
 
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