You’ve all p*ssed me off now! Not playing! Rotten bu*gers!
The answer is a beer delivery system.
It’s illegal to make or own a cannon or mortar. But you can make and own a beer delivery system. Hence the bore of it. A can of beer could be sent 750’! It set off cold, it wasn’t when it arrived.
We did try for longer distances, the cans weren’t up to it. BANG, the beer went but the sides of the can were jammed in the barrel.