AK-47 Underwater at 27,450 fps

[Feuer Frei!]

Now this is cool, the video is 10 minutes long, well worth watching imo.

Destin uses an AK-47 to teach you the Physics of cavitation

[nikimcbee]

I approve of this science. That's wicked cool.

[Stealhead]

You can see how some of the gases pass through the ports on the gas tube.That is actually the most important part of an AK if that tube where to get dented deep enough to effect the piston you pretty much have a 30 round bolt action.

Of course it also shows why the AK-47 is so reliable plenty of tolerance so it get get pretty darn dirty and still produce enough force to move the bolt.

I saw some place a laboratory grade slow motion video of an AK-47 and an M-16A1 firing it was very interesting to see the difference between the two.The rifles where places in a rig so that only the weapons movement would show and you could see the entire rifle.

The AK move a lot but this makes sense because it was designed to be as reliable as possible so it has loose tolerances which of course means that dirt and grime can build up at not foul the operation as easily.The M-16 on the other hand had very little movement which again makes sense as the M16 was designed to much closer tolerances which generally increases accuracy.


I found fairly decent clip of an AK-47


And an AR15 this company is promoting the smoothness of its triggers so they do not show the barrel but the barrel on any gun will flex to some extent upon the projectile travel with an AR15 or any sibling it will flex much less than the AK47 barrel flexes.Keep in mind also that is this clip the rifle appears to be braced and the AK47 is not also single round being fired vs multiple for the AK.They did not use a larger magazine in this clip(looks like they simple chambered a round as even a 5 rounder is not fully flush which is a slight bit unfair as you'll see more movement due to the cycling so in all honesty this video is a bit sneaky.

[Red October1984]

I've seen this one.

I posted it in the Firearms thread.

[Stealhead]

Originally Posted by Red October1984

I've seen this one.

I posted it in the Firearms thread.

Which one? That one does not attract everyone though a bit niche it only attracts people who are a bit more knowledgeable and actually own firearms.


Anyway here is a protip.If you have never fired an AK before do not hold the thing by the magazine while firing chances are that you did not seat the magazine well and it will pull up a round and send the magazine and your hand flying downwards with pretty good force.Seen a few people do this(not with my property) which is why for a layman I choose to load an AK myself and tell the person not to hold it by the magazine lest they wish to discover the capital of Thailand.I think much of that has to do with cheapo AK clones and cheapo magazines though by design holding an AK by the magazine while firing should not be a problem so it is either a crap gun or a crap magazine in most cases or a very timid loader.

[gi_dan2987]

Originally Posted by Stealhead

Which one? That one does not attract everyone though a bit niche it only attracts people who are a bit more knowledgeable and actually own firearms.


Anyway here is a protip.If you have never fired an AK before do not hold the thing by the magazine while firing chances are that you did not seat the magazine well and it will pull up a round and send the magazine and your hand flying downwards with pretty good force.Seen a few people do this(not with my property) which is why for a layman I choose to load an AK myself and tell the person not to hold it by the magazine lest they wish to discover the capital of Thailand.I think much of that has to do with cheapo AK clones and cheapo magazines though by design holding an AK by the magazine while firing should not be a problem so it is either a crap gun or a crap magazine in most cases or a very timid loader.

If the magazine is properly seated in the well it should not come undone. Have you seen the mag release on that thing? It's a huge steel tab with a fat spring behind it. You know when she cracks home that she's locked in. The AK is like a Biker chick, you gotta slap her around a little to get her to perform.

The M16 on the other hand is like a snooty redheaded prom queen, you look at her funny and she'll jam up on you and leave you hangin, but if you care for her she'll do the job cleaner and better than the biker chick.

[gi_dan2987]

Originally Posted by Feuer Frei!

Now this is cool, the video is 10 minutes long, well worth watching imo.

That's exactly how a depth charge causes its damage. It's not the explosion, it's the implosion that pulls at the hull of the boat, flexing and straining the metal, and that's really what causes the damage. Excellent video! I love science experiments

[Tango589]

Originally Posted by gi_dan2987

That's exactly how a depth charge causes its damage. It's not the explosion, it's the implosion that pulls at the hull of the boat, flexing and straining the metal, and that's really what causes the damage. Excellent video! I love science experiments

This, I did not know! It's true, you DO learn something new every day. Awsomeness!!

[Sailor Steve]

Originally Posted by gi_dan2987

That's exactly how a depth charge causes its damage. It's not the explosion, it's the implosion that pulls at the hull of the boat, flexing and straining the metal, and that's really what causes the damage. Excellent video! I love science experiments

Not so. The initial explosion creates a shock wave that causes immense pressure against the hull (the same as a torpedo). It does also create a gas bubble which then collapses, which causes a secondary shock wave that can cause even more damage.
http://en.wikipedia.org/wiki/Depth_charge

[Jimbuna]

Originally Posted by Sailor Steve

Not so. The initial explosion creates a shock wave that causes immense pressure against the hull (the same as a torpedo). It does also create a gas bubble which then collapses, which causes a secondary shock wave that can cause even more damage.
http://en.wikipedia.org/wiki/Depth_charge

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