How to use a Balearic Sling

If you get yourself set up with a few good slings and practice - an incredibly complex set of calculations when you think about it - over reasonable stone slinging distances, the stone slingers - especially if using accurately sized and weighted "military" stones of a consistent size - they become incredibly accurate and very very dangerous.

https://en.wikipedia.org/wiki/Sling_(weapon)

Ancient peoples used the sling in combat—armies included both specialist slingers and regular soldiers equipped with slings. As a weapon, the sling had several advantages; a sling bullet lobbed in a high trajectory can achieve ranges in excess of 400 m (1,300 ft).[23] Modern authorities vary widely in their estimates of the effective range of ancient weapons. A bow and arrow could also have been used to produce a long range arcing trajectory, but ancient writers repeatedly stress the sling's advantage of range. The sling was light to carry and cheap to produce; ammunition in the form of stones was readily available and often to be found near the site of battle. The ranges the sling could achieve with moulded lead sling-bullets was surpassed only by the strong composite bow.

https://www.warhistoryonline.c....om/war-articles/slin