First off, welcome to the forum.
And to answer your question, if your shot group is that small and looks like one ragged hole in the center of the target, then it is pretty easy to tell that that is where all of your shots are going as there will not be any 'fliers' outside of that area on the target. The ones that are of concern is the targets that look like they were hit with a shotgun from a good distance and the shots are all over the paper. Those have to be counted to make sure the points add up. It is also very easy to tell if there are one or two holes if there happened to be two shots in close proximity.