[Rick]

Originally Posted by fernando

Trying to focus on the muzzle; not all layers are in wood. First you have a 'shirt' in the bore and next to it, could be a (nother) metalic section ?
I wouldn't know about wooden cannons, but leather ones actually existed; i hace pictures somewhere around.
Still David's aproach is quite a pertinent one .

Fernando

Here :
http://www.vikingsword.com/vb/showth...leather+cannon