Swing sling it and release like underhand throw of the sling but volila a rope attached prevents it from sailing away , ready to be deployed as its kept in constant motion .
I've heard of slingers question how to abort a hard hurl and actually use the loaded sling as a long blackjack . Well here it is ! You learn twining motions that could absorb the energy of an aborted sling . No injuries if you practice right . And there is sideways force also instead of a straight throw you can wrap it around someones legs easy . Or a Canadian Goose's neck.
It took me a few days filing down a railroad spike after I cut the head off . A few hours a day a few days and it was done . A blacksmith could do it faster with 5 forged steel rings in the typical flower pattern .All you need is a Railroad spike or a 5/8 inch by 6 inch peice of bar stock to start .
You can make a quicky of anything heavy , 1/2 lb to 1 lb , the approximate shape or even a ball or plumb bob will do .
They are available on the net by different makers or contact me on the trading thread . Perhaps we can talk Lobohunter into making some..