Because the cannon hadn't been fired in over 150 years, Will spent the episode researching and inspecting the steel to ensure it could be fired safely without exploding.
Will’s first attempt at a suppressor design was actually a failure.
Many gunsmiths considered a shotgun silencer nearly impossible due to the nature of the shot cup and gas expansion.
Are you more interested in the of how they silenced the shotgun or the historical restoration process of the cannon?
Red Jacket Reality: Silenced Shotguns and Civil War Steel In the premiere episode of Sons of Guns , titled the crew at Red Jacket Firearms kicked off their high-octane series by tackling two massive—and very different—challenges. The "Impossible" Build: The Shotgun Suppressor