Navy Gun dimensions

[Ovenpaa]

I have been thinking of building a navy type gun for ages and now with the ability to CNC profile in house I have moved a step closer. I was thinking along the lines of a ships gun as used on HMS Victory with a finished length of around 24" - The problem is where an I find some dimensions to scale from for such things? I keep ending up looking at low resolution images on Pinterest which are of no practical use to me. So can someone please point me in the general direction of some plans or scaled drawings to work with and at least take a view on if it is a feasible project.

[Alpha1]

http://www.buckstix.com/HowitzerBarrel.htm
http://www.thepirateking.com/historical/cannon_deck.htm
https://www.amazon.com/Building-18th-Ce ... 0615257879

Click on above to view it.

[glevum]

https://www.arc.id.au/ArmstrongPattern.html

If the barrel is over 24" long then you can hold it on a SGC...