Was it developed by Col. Jeff Cooper?
IIRC it was developed as a test for guards. The idea is that you shoot
the body twice and if the target isn't down then you assume they have
body armor and you shoot the head.
The 10mm was developed to improve on the 9mm and to some extent the
.45ACP. The FBI worked with them too as a result of failures of 9mm in
use by their agents. When the 10mm proved too much for some of their
agents to handle, the .40S&W was developed. It has the increased power
that was wanted but can be used in smaller form factor guns that were
previously only available in 9mm. I don't know why the 9mm is so
deficient because its ballistics on paper can seem close to the .357 mag
that does have good results. The .40S&W has significantly better
ballistics and in most handguns that have high capacity in 9mm, you only
lose a couple of rounds when you chamber it in .40.
> Who developed "the Mozambique Drill"?
> That .40 and .45 fanboy speak is old and tired. Give me 18 rounds of
> 9mm over 8 round of 45 any day. The 45 isn't THAT much more powerful
> than a 9mm. In fact, 9mm muzzle energy is about the same as the 45,
> generally around 375-400ftlbs. If your assailant is wearing a vest
> and your 45 mindset says stop after the double tap then you will have
> needed a different mindset.
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