question about calibers

[IMARA]

can anybody tell me if this is correct?

from the less to the most powerful: 9mm/.45ACP, 5.7, 5.56, 7.62, .338, 12.7
I did not include some, of course.

thanks in advance

[Aussie E]

I would say the .45 is more powerful then both the 5.7 and 5.56 at close range.

[pettifogger]

Define what you mean by powerful. Just pure muzzle energy? Amount of penetration in gelatin?

[IMARA]

I mean... power in general... for example we say the 7.62 y more powerful than the 5.56, something like this. I the scale is more or less ok

[Freibier]

5,7, 9mm, 45acp depending on gun, load, barrel length but nearly identical - some have better penetration, some better stopping power ~ 500-700Joule
5.56x45, ~ 1800Joule
7,62x51, ~ 3500Joule
.338 Lapua Mag ~ 7000 Joule
.50cal ~15000 Joule