Ranged Weapon Master

You have mastered ranged weapons and can make shots that others find impossible. You gain the following benefits:

• Bypass Cover. Your ranged weapon attacks ignore half cover and three-quarters cover.
• Firing in Melee. Being within 5 feet of an enemy doesn’t impose Disadvantage on your ranged Attack Rolls with Weapons.
• Ranged Weapon Mastery. When you hit a creature with a Ranged Weapon as part of the Attack Action on your turn, you can cause the weapon to deal extra damage to the target. The extra damage equals your Proficiency Bonus, and you can deal it only once per turn.

(A mix of the OneDND Sharpshooter and Heavy Weapon Master feat)