Instead of using a ball valve or other such contrivance to dump air directly from a reservoir into the chamber of this PVC air cannon, [Ben] is using a much more clever design. This is a barrel ...

Their fear of profit-minded nonprofessionals finding more parts, including the cannon's barrel, is perhaps the primary reason the find has received little public attention. MUSEUM'S 'FREMONT ...

[FarmCraft101] is casting a bronze cannon. Sure, it’s scaled down a ... with the next videos covering the machining and boring out of the barrel. That’s some serious craft right there.

A cannon which dates back prior to the Civil War was restored over the winter and recently returned to Legion Park in Winchendon.

ASCALON (Autoloaded and SCAlabLe Outperforming guN) is a French next-generation cannon that allows for the selection of the caliber of ammunition used thanks to its interchangeable barrel capability.