At 7? Only 7? Needs to have at least 1-2" unsupported slow fire groups. This is SLOW fire however and highly variable on the shooter, their expectations, ammo type (high vel, or target slow loads), etc.... At speed, at least 3-4" or, at minimum, hitting what you are aiming at (aim at throat/heart/center of face/pelvis on a target, you are hitting it or CLOSE enough to disrupt the organ). Remember, the worst results you get in practice will be the best results in a real fight. Train train train. I see lots of folks come out to the range that try shooting "defensive style" but have not learned proper technique of basic fundamentals. They cloud poor shooting technique with the image of "defensive shooting". Dont fall into this. Fundamentals first, FUN stuff later
. Also, spraying down a target is probably poor training. At 7, aim. Closer, point shooting.
At that close of a distance, combat vs. target pistols (in regards to the average shooter) means little. A gun is a gun IMHO at that distance (at least with a gun owner as opposed to a true shooter). Its when you start getting 15-25 yards, thats when things get good or bad, depending on the shot with slow fire.
I am not a tactical or defensive instructor, there are many here on the board, they should be along to say what they think is best!
This is just my opinion. What are your groups? With what weapon and load?