[Taera]

QR are one of the most understimated weapons in the game. The point is they do full damage at max range. Those babies, put on a base or a well-rounded ship can slaughter anything. Tested! (not in PBW - in short games their high research cost kills all the usefulness)

If you have the time and dont have any racial techs i think Torpedoes are a worthy research project to undertake.