Rapid

When you would make a ranged weapon attack with a weapon with this property, you can instead unload on a single target, consuming ammunition equal to the rapid number. The target must make a Dexterity saving throw (DC = 8 + your bonus to attacks with the weapon). On a failed save, roll the weapon's damage dice twice and add them together, adding relevant modifiers as normal and subjecting the target to any additional effects that would occur on a hit. If you would have advantage on your attack roll, the creature instead has disadvantage on their saving throw, and if you would have disadvantage on your attack roll, the creature instead has advantage on their saving throw.