Forget 5 yards. If a shooter can't keep all or most shots between the 8s on a B27 at 25 yards, it is the shooter, not the gun.
Today 10:02 AM
If you are shooting someone at 25 yards in a self defense scenario you are going to be hung out to dry. The vast majority of self defense scenarios happen close, fast and fierce. Most begin at conversation distance. These very small guns, with 3 inch barrels (more or less) are made for "across the room" distances. The Kahr PM9 is my choice and is my every day carry.