Hi. I remember I have seen a video on Youtube several years ago where two teenagers were casting stones to a cliff wall.

The interesting subject is they had slings made in a way the pouch or stone cradle was concave when they have the stone there, but when they released the cord and the sling opened the pouch became a little convex, so the stone leaped a bit.

Someone else remember to have seen that video or such type of sling?

Greetings and thanks in advance!

I have been looking for the video again many times but I cannot find it 

I remember the sling was somewhat like an ancient Egyptian one. The pouch for the stone was made in a way it flipped from concave to convex when the release string became loose at the moment when the user fired the stone.

I am sorry I neither can find the video nor have a better description or more detail.

https://slinging.org/forum/YaBB.pl?num=1613167640/11

It's not like I saw it but the idea is interesting and innovative.  

IronGoober wrote on Mar 29^th, 2024 at 8:38pm:

This! 

Hi everybody.

Two weeks ago I made a slingshot for little child. He is only 3 and already he is starting to get immersed in Matrix/smartphones. The rubber bands aren't great. But the ones I got which are powerful tear just after a few shots. Anyway I am sure the little boy will never be allowed to use it. It will finish hung on a garage wall as a curious thing from a recent past or thrown to the trash in a rush cleaning.

I was not thinking exactly about a shepherd sling with rubber bands or a halfling hoopak

The power added by a flipping, leaping or popping stone sling pouch would be negligible. But my interest is more aimed toward reducing the friction or avoiding completely the relese cord touch the stone once fired. Just as IronGoober says here https://slinging.org/forum/YaBB.pl?num=1613167640/11

I saw Sarosh post https://slinging.org/forum/YaBB.pl?num=1709755717 which is very interesting.

I use to see many times rifling spiraling wonderful shots but also Magnus effect menay times. So my interest is more aimed to achieving this:

"the missile may not fly out at random, from the pliancy of the strap at the moment of discharge, but, seated firmly while being whirled, may be shot out as if from a bow-string."

"the loose band does not roll about in the throwing of a bullet, but balanced when it sits, as if it were shaken by a mass of strings."

Greetings!

Hi kairo. I know you were joking 

I got the quotes from Livy's description of the Achaean sling. The first one is the official translation. The second is the translation I get from Google. It is slightly different and it says nothing about a bow string.

In Southern Spain the type of sling used is the same as nowadays Balearics, so I have the trend to think in slings as braids. I my zone rocks are mainly sandstone which it very light. So I must use a bit large stones that roll on the sling and get a lot of Magnus effect. That is the reason I use to think, sometimes even obsessively in how was the actual Achaean sling.

My goal it to get a pre-opened sling or one made in such way that it has the tendency to open once released while it still holds the stone firmly when whirling it. But without the assistance of rubber bands or anything modern.

Greetings.

What is a pre-opened sling? I do not understand the problem. There are perfect stones in Ibiza. But they break very quickly and are very light. There are no problems with it.