Behind the Special Collections case is a 3-inch cannon located in front of the painting of Kennesaw Mountain. This cannon is also a muzzleloader. A gunner loaded black powder and a cannon ball at the front, exposing him to enemy fire. He used a rammer to push the ammunition and charge to the rear of the cannon. A friction primer was inserted in a small hole in the breech and attached to a heavy string, which was pulled to set off the charge.