Click on the arrow in the screen link below to connect to the YouTube video of the making of the 1779 model cannon. Probably of interest only to machine aficionados, but it does feature some very pleasant music composed and played by Lis Viggers.
The labels appear too briefly, so use the pause button to read them.
The segment on boring the barrel is really boring. (really)
And a few editing errors appeared. I typed cascobels when it should have read astragals. Not prepared to delete, re-edit and re-upload given my very slow Internet connection.
And this is a link to another YouTube video with an excellent description of how these type of cannons were made originally. Definitely worth watching.