No point using 7.62mm as a main gun on an AFV, total waste of fuel
76mm, lets think....that's a tad over a 3 inch bore
One of the boats dad served on, HMS Taciturn:
http://www.flickr.com/photos/44292160@N05/4098195290/
I was brought up on submarines, the old T and A class boats..ex-WW2, they were given the 'slippery-T' conversion, removal of deck gun, streamlined, more batteries installed, they changed from lumpy grey to streamlined black
![Wink ;)](./images/smilies/wink.gif)
I remember the names, Tip-toe, Talent, Tabard, Alaric, Acheron, Andrew....
Dad told me once that the deck gun crew would come out in a bubble, by the time the deck cleared the surface the gun was loaded and ready to lay-on....
Derek