Gun locations on a 90 Day Gunboat. The two sizes of gun can be clearly seen - the larger calibre centrally mounted pivot gun and the three other smaller pieces.
After some experimentation I came up with a solution for making smaller calibre artillery pieces using the standard naval gun carriage. It is very simple. I merely cut the spacer and trim back the lower rear edge of the carriage and use a slightly smaller piece of cocktail stick for the barrel. I am using 10mm for the larger calibre and 7.5mm for the smaller which gives enough visual difference between the two types.
One thing I have settled on is that I shall paint cocktail sticks black and will cut the gun barrels off as I need them meaning that all I have to do will be to shape the rear of the barrel and touch it up in black. This will be easier than painting them after having cut them out!
These are easy enough to make but are quite fiddly all the same. Having said that they are an essential feature on a number of vessels I am planning to build (and retro fitting some existing models) so having a simple template to work with is hugely advantageous.
Going forwards the same basic principle could be used with other vessels although for earlier types I would want to make a more typical looking gun carriage - for example the usual Napoleonic style nava carriage. Something to think about anyway.