It amazes me that a 10mm Luger bullet (middle) has about 50% MORE energy than the significantly larger .45 colt long (right).

For reference on tbe left is a 9mm parabellum.

@freemo The FBI used 10mm and it had excessive recoil problems and they had issues, so they approached S&W to create something new, S&W made them the .40 cal which is just a 10 mm but with a shorter case.

But recently, maybe a couple of years ago, the FBI did a use of force study, and they discovered that the best carry for accuracy of initial shots and accuracy of follow-up shots is actually 9 mm so they switched over to 9's.

Thanks for listening to my TED talk

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@rchrd Yup, all accurate.

But its important to note what works best for the mean is not the same as what is best for the individual.

If you must apply a standard for everyone, find the best in mean and go with it... but if you dont need to then find what is best for the person, regardless of the mean.. I have no doubt 10mm is the superior shot for some people (perhaps those better at handling recoil) and not the superior shot for others.

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