are you talking about carefully aimed, slow fire groups and at what range?
Not asking to be smart but to clarify for my knowledge. I used to worry about slow fire, very carefully aimed shots at a particular yardage until I took my ccw class a couple years ago.
The instructor also taught self-defense shooting and in order to qualify we shot (approx) 18" x 24" target at 7 yds, in double taps. A good hit was anywhere on the paper and hopefully 5-6 inches apart. On that day I was very lucky to put 2 from my double taps in the same hole with my Kimber. While impressed with the weapon, the instructor gently reamed me for not having the space between my rounds as 2 through the same hole wouldn't do as much damage to the bad guy.
On the advice of the instructor, I have stopped shooting for bullseyes and stopped worrying about groups