WoW Information: Leveling Marksmanship Build
Leveling as marksmanship is undoubtedly about the burst damage in WoW, as in repeated usage of both aimed shot and every other special attack. Unlike beast mastery hunters, you will find that the pet begin to lose it is threat holding capabilities somewhere around level 30 (World of Warcraft Gold) your damage has to make up for this.
In essence, you will be playing a mixture of kiting and blowing away the target mob, obviously you could skip the kiting part if you do not mind being beat on, but that's generally not a good strategy for consistent and efficient killing. Each fight can be opened with either aimed shot, or an arcane should the former be on cool down, it is likely that your pet will burst out and pull aggro temporarily, however expect the mob to be coming your way within a short period of time.
Generally you'll get a good feeling for exactly how long you have before a mob detaches from the pets growl, and comes to kill the master instead, in time you'll be instinctively firing off a concussive shot at the same time. The basics would just be blast away at them until they die, not much more to it than that. This is a video of a 72 MM Hunter in North rends. Pretty basic, but it shows some of the basics and some kiting.
