Make lock on missile turret
set to select fire
shoot at something, it shoots instantly without any lock time (it should have to look at the ship within the lock cone for the lock time)
If you have selected a ship, then it jams, turrets will still fire lock on missiles with no problems, even when its jammed (if a ship jams, the turrets should attempt to dumb fire not continue to shoot their insta locking lock ons)