Fighter/2nd/Sharpshooter

Sharpshooting

At 2nd level, you gain one fighting style of your choice from Archery, Sniping and Potshot. At 3rd level, you gain another fighting style from these three.

Ammo Savvy

By 3rd level, you're sharp enough to always have enough ammunition on hand. You somehow always have enough ammunition available for your weapons, and do not need to expend pieces of ammunition to attack with weapons that have the ammunition property.