Measuring Shooting Skill and Marksmanship

Words of wisdom on measuring shooting skill.

When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind…

— Lord William Thomson Kelvin

If that is too long winded for you

He who refuses to do arithmetic is doomed to talk nonsense.

– John McCarthy
Professor Emeritus of Computer Science, Stanford University

More specific to gun owners.

Shooters, more than any other group, suffer from delusions of competence.

– Karl Rehn (

Without a method to evaluate skill, a yardstick to render the attempt into numbers, we can’t measure. If we don’t measure we don’t understand and will live under the delusion that we do.

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