Focused Fire Feat

Hearts utilize innovation to a greater degree than most other creatures on Olum. Though simple in form, they have an innate ability to grasp new concepts and act upon ideas with greater skill and focus. You gain the following benefits:

Prerequisite: Heart

• You have adapted advanced routines when wielding firearms, allowing you to shoot with greater reflexes. Whenever you have advantage on an attack roll using Dexterity with firearms, you can reroll one of the dice once.
• Being within 5 feet of a hostile creature doesn't impose disadvantage on your firearm attack rolls.

Source: TfV