Well yes i mean, i could but it wouldn't feel right to me to design a laser gun and call it coilgun. I agree with endless customization, and it's fantastic to call whetever you want the way you want, but i guess i'll end up using railguns or trying to use gauss cannons as anti ship weaponry. Somebody said that a coilgun would perform better than railguns into space, and if you think about it, mass drivers are essentially coilguns, and in aurora they have a freaking range. While i'll try to use my imagination, i guess that gauss cannons should be reworked, as in my opinion they are too undervalued. . . still thanks for the tips!
The range is because of light speed limitation combined with the 5 second pulse. Otherwise the game would need to track each projectile that kinetic weapons pump out. Now they are "magic" in that they just pop from attacker to the defender inside the 5 second pulse as long as they are close enough.
Gauss guns are already quite powerful. What you want is to use railguns, they will fit the role you want. Don't get hung up on the terms too much.