Chlorophyte Bullet

Chlorophyte Bullets have a homing effect - if close enough, they will curve to hit an enemy, including being able to turn around corners and even do a 180° turn if need be, sometimes even managing to hit enemies behind your back opposite of where you're aiming.

Comparisons
VS Crystal Bullet Advantages:
 * Higher damage rate
 * Seeks enemies
 * Always on target

Disadvantages:
 * Far less effective against Skeletron Prime during the day, and the Dungeon Guardian
 * No damage spread to other enemies upon impact, only hits one target
 * More expensive to make