except, as u can see, the KES Graceling is equipped with two turrets of three railguns. These guns are able to lob a shell 45 miles accurately. is there a rangefinder and RADAR like that? i will look
No. You are firing over the radar horizon. To get a radar that can spot a 15m high target ~83km (~45n.m) away requires a radar that is ~266m off of the surface. To put that into perspective, Think about the Eiffel Tower. This is why targeting tends to be offloaded from the launch platform.
Also, you've got equipment on there from way, way to many eras. A modern ship with rail guns isn't going to mount 5"/38s.