If I have a railgun with only 10kkm range, but I use it with a 72kkm BFC, would it have good accuracy at 10kkm? In other words, could I use baseline, zero research, un-upgraded railguns on PD fighters using the shortest possible range? I know they wouldn't be much use outside of attacking unarmed vessels in combat (having to get all the way to point-blank range to even fire), but would it work just for the PD role to cover other, longer range fighters/bombers?
And while I'm here, ECM only reduces the range of the BFC and wouldn't stop my 10kkm railgun from firing, correct?
(Is this a good idea?)