Speaking of bore obstructions, what am I likely to find in the bore of a former municipal park muzzleloading cannon? Concrete? Mud? Rubbish? Projectiles?
This is likely an insurance gun, a carronade, Congrieves Pattern from the early 1800s. The 9-Pdr RML dated 1874 has been sold on the Detachment Matross in Gatineau.