Ive been shot for 310+ damage before, I am assuming by some kind of BG sniper rifle ( most of which have unreal range 80 hex + range)
Some OP shit these Big guns, and grenade launchers for ZC. But then again plasma cannon is pretty spectacular, but it is expensive, and the projectile is really slow ( like you can see it comming and dodge it pretty much) But energy guns can counter armors defenses, like electric VS metal armor, plasma VS leather, etc.