it's called being able to aim at your targets...
the Suros Regime probably has one of the best stabilities for auto rifles and is usable when you can hit headshots and use the Spin It Up perk
Although, the Doctrine of Passing is probably the best auto rifle right now and it melts people if you can land those crucial headshots
the Hopscotch Pilgrim and Parthian Shot are two pulses that have really high stability. Although, you should use them at medium range the Parthian Shot can land a two burst kill if you can, yet again, land those headshotd