Shooting stances can help or hinder your practice at the range. Although there are many different types of theories and ideas for what stance works best for the type of shooting you are training for, the video below discusses, how the once popular Weaver Stance may not be the best choice for defensive shooting.
According to The Personal Defense Network “The Weaver Stance was very popular in the past and there are controlled circumstances under which it works well, but for shooting rapid strings of fire into the torso of a threat, the Weaver stance has several failure points. Rob and Christina demonstrate this with some shooting drills using the Weaver stance first.”
For rapid shooting aiming, at the upper half of the torso in a more athletic stance would be better. These stances allow for the shooter to have a better chance of hitting their target since their target will likely move while being shot at.