thanks
that's really great work.
2 small things: the italian guns are Oto Melara's (except the last one). maybe that should be added, but I am not really certain about that.
the bottom italian gun is an 76 mm, I am not certain if that should be added.....
and the name 'main caliber' instead of 'medium caliber' would IMHO be better for these guns (seen over all times, they are medium, but for modern guns they are medium and large.... or does that british 155 belong on the heavy guns sheet?)
also, it might be better to put the mk 75 under US.