Sling Master (5e Feat)
From D&D Wiki
Prerequisites: Dexterity 13 or higher
Through rigorous training and repetition, you have mastered the humble sling, letting you hurl bullets farther and with greater force than the average slinger. You gain the following benefits:
- When you wield a sling, its damage die changes from 1d4 to 1d6. In addition, the sling’s normal range increases from 30 feet to 60 feet, and its long range increases from 120 feet to 180 feet.
- When you score a critical hit with a sling, you deal extra damage equal to your proficiency bonus. In addition, your target must succeed on a Constitution saving throw (DC = 8 + your proficiency bonus + your Dexterity modifier) or become stunned until the end of its next turn.