given that you can throw really straight really easily with a staff sling and also use a large pouch loaded with pebbles.
It would be ideal for hunting water fowl as they took off from a pond or lake.
Kind of like the stone age ballistics version of a punt gun
So yeah, good hunting tool.
And yep you can get good spin from a hoopack style staff sling. But you just can't get the same distance as you can with a hand sling.
mainly down to the actual technique used for a staff sling and also the rigidity of the staff itself.
You just can't tranefer the same kind of energy from your body to the sling on a staff as you can with a hand sling.
But for waterfowl hunting - would be ideal.