Two-Birds Sling

You have a +1 bonus to attack and damage
rolls made with this weapon.
When you make a ranged attack with this sling
and hit a target, you can cause the ammunition to ricochet toward a second target within 10 feet
of the first, and then make a ranged attack against
the second target.
Proficiency with a sling allows you to add your proficiency bonus to the attack roll for any attack
you make with it.