The average number of rounds until incapacitation was also remarkably similar between calibers. All the common defensive calibers required around 2 rounds on average to incapacitate. Additionally, all four common defensive cartridges have very similar failure rates. If you look at the percentage of shootings that did not result in incapacitation, the numbers are almost identical. The .38, 9mm, .40, and .45 all had failure rates of between 13% and 17%
I was sent this from another shooter and I found it interesting and though it was worth sharing. even though it will never stop the caliper wars it will peak some interest in some that have never seen it
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