MA has hitcount, it will always disappear after its hitcount, so no need for Circling.
Circling affects:
Archer Multishot.
Ranger Barrage.
Quarrel Shooter Caltrops, pavise, teardown.
Hunter pet attacks if you can fit all enemies together in front of your pet [edit, much thanks to compo] => not coursing and retrieve.
Sapper Punji stakes, spike shooter.
Falconer sonic strike.
Reiter concentrated fire, wildshot.
Musketeer Snipe, Covering fire, penetration shot.
Cannoneer all skills, except Siege Burst.
Hakkapalle Stormbolt, Sharkhugging.
Mergen skills (not arrow rain). Currently some users are testing this on Kr forums, I am gathering info.