What the top people in the world can do is impressive but has little application to the average shooter trying to make the best choices for a chambering which will allow them to place accurate shots as quickly as they can.
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Agreed. In my years of shooting competitively in IDPA and USPSA my impression was that most people in the middle of the pack tended to shoot minor power factor calibers because it helped them achieve better scores. They proved it to themselves, and to the rest of us, so who am I to argue? Cowboy action shooters take it to an absurd degree... shooting mousefart loads in highly modified pistols extremely quickly. No question you can't shoot that fast with anything even close to a real fighting pistol load.
