Can anyone clearly explain the duel mechanics to me?? What I do is raise the reticle until it's within my opponent's body and then just hammer on the trigger as quick as I can to get the shot(s) off. This works really well most of the time but it's not a be all end all way of doing it. If someone could please explain the proper way to conduct a duel, I'd be grateful.
PS - this is in single player only, I don't really like Rockstar MP games.
Thanks in advance for any and all help/advice.