HMMM.
Interesting question.
My first priority is the gun light enough, and small enough to carry all the time, and, if so, what can I do with it at 7 yards?
Second: what is it's effect going to be on the target? What load am I able to place reliably on target, and how hot can I load it without it being unshootable?
Third: How big is the bad guy going to be, and, how many are there likely to be?
fourth: Is there anyway to avoid putting myself in that situation?
fifth: What other resources can I employ short of a firearm?
sixth: what other characteristics, BESIDES the bullet, does the gun have, and ammunition, that might effect the situation?
seventh: Do I shoot the gun well instinctively, using primarily the front site, and quickly?
eighth: How quickly can I reload the gun, and how many rounds does it carry?
ninth: what method of carry can I use with the gun, without having LEO problems, since in our fair state you have to be Nancy Pelosi or Fienstien to get a CCW permit.
I have a variety of solutions to these questions, and problems. ALL are compromises. Accuracy is part of, but not the entire equation.
I will accept that at 7 yards I'm likely to only be able to body shoot a bad guy with a scandium 360PD if I use 148 grain, 1131 fps .357 Mag ammo, which is all I can shoot out of the gun, recoil wise.
My train of thought goes something like this:
The gun is very light, I can pocket or thunderwear, or a variety of other kinds of carry. It is NOT as accurate as some heavier, more compact solutions. A Kahr PM9 is MUCH more accurate, with 147 grain HST at around 900-950 fps, giving me head shot capability. Still, the 360 has booming sound, huge flash, and resembles a flash bang grenade coupled with a flame thrower. If I miss, bad guy is likely to be stunned, more so then with the 9mm HST.
Detonics CombatMaster, or a full sized 1911 will shoot 230 grain 45 Super at 1100 fps, or, 200 grains at 1200 fps, with recoil I'm comfortable with and excellent accuracy. Trade off is they are heavy, and more difficult to conceal.
Favorite? Shoulder rig with .500JRH FA 83, with about a 5" barrel.
Incredibly accurate, I'm fairly fast with a single action, and very comfortable carrying one. Reloads suck, but, chances of a one shot stop with a 275 grain Hollow point that opens up to 2 bore rifle/shotgun size, at 1600 fps are excellent.
Finally, all of this is dependent on the situation you are likely to face. A rural trip to the woods, the FA 83 is great, provided it's not hot. My weekly trip to beautiful downtown Oakland and Richmond? Detonics or Kimber would get the call with .45 Super, because gangs are a major issue, not bears or hogs.
So try and match your choices to the situation you are going into, and the challenges you are likely to face, and, be prepared for the unexpected.