question: deck gun upgrading

[Brig]

Originally Posted by hooligansteve

It should really be 3.50 caliber or 4.50 caliber. I.e. 3.5 inches or 4.5 inches. The diameter of the inside of the gun barrel. As for the mounting 'glitch', you got me.

Actually in US Navel terminology 3in 50cal is seen as the projectile is 3in, the barrel length is 50cal (barrel length is 3in x 50 = 150in or 3.81 meters). As same for 4in 50cal (barrel length is 4 inch x 50 = 200 inches or 5 meters) so going with the 3in 50cal will be a smaller deck gun with shorter range. With 4in 50cal you will have a bigger gun and longer range.
(the more you know)

As for the problem I would say it's a glitch, usually I either reload an earlier point or restart.