[dmm]

If a repulser beam can target an enemy ship 6 squares away and toss it 12 squares, then the corresponding tractor beam should have a range of 18. EXCEPT, that they have to "lock on," which involves aiming, so obviously it should be harder to lock on with a tractor at range 18 than to lock on with a repulser at range 6. UNLESS, the push/pull effect is impulsive (i.e., the momentum transfer happens all at once in a single burst), in which case the current range rules make sense. But then the damage levels ought to be a lot higher, because the target is being shoved/yanked very roughly. You could argue that the weapons work by warping space so the damage is correct, but then you've got no argument for having relative size matter.