Heavy Projectile Master Feat

You are a master of ensuring you fire with maximum strength at your targets. You gain the following benefits:

Prerequisite: Proficiency with ranged weapons that have the heavy property

• Power Shot. When you make a ranged weapon attack with a weapon that has the heavy property that you are proficient with, you can forgo adding your proficiency bonus to the attack roll. When you do so and hit, the attack deals additional damage equal to twice your proficiency bonus.
• Punch Through. When you roll a ranged weapon attack with a heavy weapon on your turn that rolls a critical hit or reduces a creature to 0 hit points, that attack can carry through and strike another creature within range that was behind the original target, using a new attack and damage roll.

Source: KT