
I’ve talked a bit in past pieces (here), and my recent podcast appearance (here) about Jeff Cooper’s idea of, “Preoccupation with inconsequential increments.” In Colonel Cooper’s own words, he defined PII as:
This peculiarity lies in attributing importance to measurable deviations so small as to be meaningless. You see it in the people who shoot test groups in rifles, awarding a prize to a group which is only thousandths of an inch smaller than those unrewarded. One sees it in speed records awarded in one-thousandths of one mile-per-hour. One sees it in basketball scores which, nearing the century mark, are separated by less than three points. In all such cases Score A is “better” than Score B, but who cares?
An increment may be termed inconsequential when it has no significant relationship to the purpose of the exercise. Of course if the purpose of the exercise is in itself inconsequential some may not think this to be foolish. A very distinguished general at Quantico once caused the sign to be placed over the exit door of every office asking, in brilliant scarlet and gold, “What are you trying to do?” There was a man who knew more about human nature than most.
Since becoming interested, and practiced in using pistol mounted optics, I’ve deep dived into what ranges to zero the dot at, whether (or not) to slave the dot to the iron sights and whether it is better and more appropriate to have the dot in the middle of the optic window, where the dot is clearest, optically.
I then test all of these different ideas and gather data in weekly range practice sessions using various drills, and in a weekly competition course that is timed, and is coupled with turning targets that only face the shooter for an unknown interval of time.
What difference does the study of all of these variables matter, in terms of actual scored shooting in a competition environment? Not much, actually. I think the variability in my week to week scores has far more to do with my fatigue level, how sore I am at the end of the work day, and my relative mental sharpness. If the match took place first thing in the morning, on my day off, the results might be a bit more consistent and clear. In an emergency where a pistol has to be used in defense of life, my worst day on the competition roster is still quite good enough for self defense purposes, as I routinely score by earning 90% or better of the available points in the course.
It is probably more than adequate to be able to shoot a standard playing card five times, in five seconds from five yards for most all necessary accuracy purposes. If you can pull that feat of precision off, you can most likely achieve any reasonable accuracy exercise out to 25 yards on a IDPA/IPSC size target. And although it is easy to get down a rabbit hole about obsessing with these small numbers, the time spent could probably be more productively used elsewhere. This is more of a message to myself, as I tend to get pretty far out in the weeds with thinking about these things. At the end of the day, sight alignment, trigger control and follow through are what rules the day and anything else is just additional baggage.
I do love the SIG FUSE though…




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