I started researching auto target as you might or might not have noticed and I happened to notice that different weapons have different reach on their AT so I gathered info on that. What I mean with range is how far the AT is still in effect. If you're too far away from an enemy, it doesn't work. The range is thus how far you can go while maintaining the AT cursor on the target.
Here is the data:
https://docs.google.com/spreadsheet/ccc?key=0AokNm7S1ec-qdEcyZExfc3lCN3Z...
Here's how I measured swords: https://dl.dropboxusercontent.com/u/62299665/Spiral%20Knights/Auto%20tar...
Here's how I measured guns: https://dl.dropboxusercontent.com/u/62299665/Spiral%20Knights/Auto%20tar...
I will gather data on arcs once I figure out how to do a proper measurement tool in Auto Hotkey (it's about drawing on top of the screen, could anyone help me?), although I doubt swords and handguns are anything but 90 and 45 degrees, respetively.
Thanks to Zeddy, Petitmoon, Simaster, and probably someone else I forgot for helping out with weapons I don't have.
I'll try to do this later. Might take a couple days though.