BRD vs Caster

[Divinemight]

You don't because this is how it works here.

Casters don't get to trigger happy because of Bard
Bards don't get to trigger happy because of Meele.
Meeles don't get to trigger happy because of Caster

My suggestion? Try to play other jobs and see this PvP from their perspective of view. Don't get trapped into a tunneled vision world.

This is also a can of worms you are trying to open. You will find it amused that even when Bard is in correct distance, their shots are still lower damage than Paladin's shield throw and Warrior's throw weapon.