What if: US marines vs Roman legions

[Docfeelgood]

5.56 is pretty damn small.

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From left to right it's a .22 LR, 5.56, 7.62 NATO, 7.62 WP, and 9 mm.

At first glance the three in the middle look similar, but you can clearly tell that the 5.56 is skinny. A 5.56 is really just a .22 LR that's been stretched out and boosted with more powder. It's about as small and light as you can make a bullet and still use it at ~250 meters.

Yea, with a muzzel velocities above roughly 2,500 ft/s!

I can see you were not in the military.

[Docfeelgood]

The fright of seeing such magical weapons at use would scare the bejesus out of the Romans.
Demonstration of a hand-grenade would be all it would take.

[BlackCat]

The Plebs would break out their AKs?

No, but when the romans figure out that the legs and arms of the marines are voulnarable to arrows, I bet that the infirmery will become busy

[Docfeelgood]

No, but when the Romans figure out that the legs and arms of the marines are vulnerable to arrows, I bet that the infirmary will become busy

The Romans would break and run after the first loud report of a weapon.

[Felch]

Yea, with a muzzel velocities above roughly 2,500 ft/s!

I can see you were not in the military.

Wasn't in the military, but I don't really get your point either.

[a.kitman]

would be intresting if you took away all modern weapons from the marins. the marins would still have 2000 years of warfare tactic on there side.

[Ecthy]

Wasn't in the military, but I don't really get your point either.

He's saying that size doesn't matter.

[Ecthy]

would be intresting if you took away all modern weapons from the marins. the marins would still have 2000 years of warfare tactic on there side.

Which wouldn't mean sh!t since warfare tactics are highly dependent on the weapons systems at use. They'd lose to the Romans straight.

[Docfeelgood]

Wasn't in the military, but I don't really get your point either.

Hydrostatic shock

5.56 mm round is more damaging, due to the post-impact behavior of the 5.56 mm projectile resulting in greater cavitation of soft tissues

[Felch]

You know that the quote you have there isn't about hydrostatic shock, right? It's about the tumbling of a 5.56 as it crashes through tissue. Anyways, I'm pro-5.56. At most ranges, it's an effective round, and it's easy to carry a lot of it.

[Docfeelgood]

hydraulic shock describes the observation that a penetrating projectile can produce remote wounding and incapacitating effects in living targets through a hydraulic effect in their liquid-filled tissues, in addition to local effects in tissue caused by direct impact.

.

[Docfeelgood]

5.56mm if very effective on people but lack penetration to hard targets.

7.62mm and 50cal for hard targets.

[Felch]

Right, that's hydrostatic shock. Good boy.

[BlackCat]

I'm pretty sure that if the romans just sent their legions in one by one it would be pretty messy, but if they treated them as they did with Hannibal, it could be interesting.

[Ecthy]

Right, that's hydrostatic shock. Good boy.

Now, is it a myth or what?