Follower weapon tip

Don't know if this has been mentioned before, but I realised it today. You know that amazing gun you'd love to use but can't because it uses rare ammo? (eg revenant)

Stick it on your follower and give them some ammo (not sure if it's required) and they'll rock that baby all night long! Sarah Morgan went from a useless follower to the deadliest bitch in the galaxy just like that.