Megashark

The Megashark is a Hardmode ranged, ammo-based weapon. It is a stronger version of the Minishark, and with 23 base damage it is arguably the strongest bullet-based weapon in the game. The weapon fires at insanely fast speed and has a 50% chance to not consume ammo. It is one of the best weapons for use against hardmode bosses.

Trivia

 * "Megashark" may be a reference to the one of the titular villians in the disaster movie Mega Shark Versus Giant Octopus