How large were the bombs fired at fort mchenry?

The bombs fired at Fort McHenry during the War of 1812, particularly in the Battle of Baltimore in September 1814, were primarily 200-pound explosive shells. These artillery shells were designed to explode in the air, creating a devastating effect on the fort's defenses. The bombardment inspired Francis Scott Key to write "The Star-Spangled Banner," which reflects the resilience of the fort amidst the heavy shelling.