Marksman's Prerogative

You gain the following benefits
Ability Score Improvement: Increase your Dexterity score by 1, up to a maximum of 20

Stable Shooting Position: Being Prone or attacking at long range doesn't impose disadvantage on your attack rolls with ranged weapons.

Entrenched: If you have not moved for more than 1 turn, your crit range with ranged weapons is 19-20, unless you have a expanded crit range that exceeds this from another source. This effect lasts until you move.

Bunkered Down: At the start of your turn, if you are Prone, you may reduce your speed to 0 until the start of your next turn. If you do so, you gain a bonus equal to your proficiency bonus to the damage rolls of your ranged weapons - provided you're not receiving your proficiency bonus from another feat.