no, not rapid fire.. tight grouping as in constantly aim at the same area within an inch apart..
even when changing mags...
also to help check your sights to make sure that it lines up.. 3 shots are all that is required you can take your time to fire each individual shot it is to check gun accuracy as well as yourself.. you aim same location and see how far apart your rounds are from each other and make a mental image and tolerance of where your round will end up..
also to help you fix your sight if they are not hitting where you aim.