De Rolo's Ammunition Enhancement

You touch the outer most fingers together (ex. thumb to pinky) the touch number of bullets, up to number of remaining fingers on hand that you are casting the spell with and imbue them with magic. You or someone else then load as many of these bullets into your firearms can hold (if not already loaded). The firearm's Normal Range and Maximum Range are doubled while firing one of these bullets and are also both considered as this spell range. When Attacking with a weapon loaded with the enchanted bullets adds the caster's spellcasting ability modifier, regardless of who attacks with it, to the attack roll. On a hit, the target takes piercing damage equal to 1d4 + casters intelligence modifier in additional to your firearms normal damage. Hit or miss, the spell then ends on the bullet.

The spell’s damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).