Sling +1

Sling +1 is an magical enchanted weapon firing bullets more efficient. It's a relative cheap magical enchanted ranged weapon sold at many shops, including the Thunderhammer Smithy, Shop of Silence and a vendor of the thieves guild.

In-game description
"Slings have existed since the beginning of recorded history. The basic sling consists of a leather or fabric strap with a pouch holding the missile, however this one has been imbued with a small magical enchantment. The weapon is held with both ends of the strap twirled around the wielder's hand. When top speed is attained, the missile is launced by releasing one of the strap's hand."