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Posted: 7/23/2013 10:17:34 AM EDT
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Posted: 7/23/2013 10:32:07 AM EDT
[#1]
That is an awesome video, very well done.
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Posted: 7/23/2013 10:33:33 AM EDT
[#2]
Just came
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Posted: 7/23/2013 10:44:47 AM EDT
[#3]
I love the Phantom.
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Posted: 7/23/2013 10:44:52 AM EDT
[#4]
that was pretty fucking awesome.
I love when people can actually talk about the science and physics behind things like this and not just say sweet ak underwater. |
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Posted: 7/23/2013 10:45:36 AM EDT
[#5]
If you like science, be sure to watch the entire video. Then get some ice for your brain.
I wonder how far from the muzzle the shot would be deadly in his test. The bullet only travels 5-6 ft he said. |
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Posted: 7/23/2013 10:46:37 AM EDT
[#6]
Great vid.
Science rulez!
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Posted: 7/23/2013 10:49:42 AM EDT
[#7]
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Posted: 7/23/2013 10:52:08 AM EDT
[#8]
I love seeing (and hearing) the secondary implosions caused by the water rushing back into the cavitation caused by the gasses. Very cool.
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Posted: 7/23/2013 10:53:30 AM EDT
[#9]
I would love to see penetration testing with ballistic gelatin underwater at point blank range, out to five or six feet.
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Posted: 7/23/2013 10:54:21 AM EDT
[#10]
cool
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Posted: 7/23/2013 10:56:10 AM EDT
[#11]
I <3 Smarter Everyday
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Posted: 7/23/2013 10:59:55 AM EDT
[#12]
Quote HistoryQuoted:
Just came Watching the gas cloud rubber band its way back and fourth.... Just amazing!!! |
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Posted: 7/23/2013 11:03:44 AM EDT
[#13]
Quote HistoryQuoted: Watching the gas cloud rubber band its way back and fourth.... Just amazing!!! Quote HistoryQuoted: Quoted: Just came Watching the gas cloud rubber band its way back and fourth.... Just amazing!!! |
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Posted: 7/23/2013 11:06:17 AM EDT
[#14]
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Posted: 7/23/2013 11:06:32 AM EDT
[#15]
Very cool!
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Posted: 7/23/2013 11:06:53 AM EDT
[#16]
That guy is pretty smart! This also kind of proves the myth that fluid in your bore will bulge the barrel is false.
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Posted: 7/23/2013 11:08:00 AM EDT
[#17]
Enjoyed that. Thanks for you effort.
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Posted: 7/23/2013 11:08:34 AM EDT
[#18]
Quote HistoryQuoted:
That is an awesome video, very well done. |
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Posted: 7/23/2013 11:11:10 AM EDT
[#19]
Quote HistoryQuoted:
Yeah, his explanation late in the video really helped. Never knew that. Quote HistoryQuoted:
Quoted:
Quoted:
Just came Watching the gas cloud rubber band its way back and fourth.... Just amazing!!! I liked watching the charging handle cavitate as it accelerated rearward. |
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Posted: 7/23/2013 11:13:13 AM EDT
[#20]
Quote HistoryQuoted:
Watching the gas cloud rubber band its way back and fourth.... Just amazing!!! Quote HistoryQuoted:
Quoted:
Just came Watching the gas cloud rubber band its way back and fourth.... Just amazing!!! Between that, the darkness of the powder on the inside, and the flickering light..........It looks like an underwater storm cloud. Pretty cool. |
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Posted: 7/23/2013 11:17:33 AM EDT
[#21]
Would be cool if someone would get in and catch it.
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Posted: 7/23/2013 11:17:36 AM EDT
[#22]
Was that AK modified for underwater use? If not, I'm impressed. |
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Posted: 7/23/2013 11:24:41 AM EDT
[#23]
The cavitation bubble created by the movement of the charging handle is pretty cool to see.
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Posted: 7/23/2013 11:31:49 AM EDT
[#24]
Cool stuff
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Posted: 7/23/2013 11:35:23 AM EDT
[#25]
Cool video. I thought it was cool that he pointed out the cavitation caused by the pressure before the bullet actually leaves the muzzle. Same principal for submarine propellers, if they spin too fast it creates low pressure and causes cavitation which makes them easier to detect.
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Posted: 7/23/2013 11:36:55 AM EDT
[#26]
cool...he should try it with an AR15 next.. .
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Posted: 7/23/2013 12:37:13 PM EDT
[#27]
Quote HistoryQuoted:
cool...he should try it with an AR15 next.. . If it is DI that is likely to end explosively. |
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Posted: 7/23/2013 12:39:25 PM EDT
[#28]
Shows what I know....
I thought shooting a semi auto under water would destroy the gun. |
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Posted: 7/23/2013 12:40:32 PM EDT
[#29]
Quote HistoryQuoted:
Shows what I know.... I thought shooting a semi auto under water would destroy the gun. Depends on the gas system. |
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Posted: 7/23/2013 12:43:46 PM EDT
[#30]
Good stuff
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Posted: 7/23/2013 12:49:09 PM EDT
[#31]
Quote HistoryQuoted:
If it is DI that is likely to end explosively. Quote HistoryQuoted:
Quoted:
cool...he should try it with an AR15 next.. . If it is DI that is likely to end explosively. I was wondering if it would work......I did not think so. You'd need a piston AR. |
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Posted: 7/23/2013 12:52:04 PM EDT
[#32]
Quote HistoryQuoted: If it is DI that is likely to end explosively. Quote HistoryQuoted: Quoted: cool...he should try it with an AR15 next.. . If it is DI that is likely to end explosively. huh |
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Posted: 7/23/2013 12:54:34 PM EDT
[#33]
Quote HistoryQuoted:
I was wondering if it would work......I did not think so. You'd need a piston AR. Quote HistoryQuoted:
Quoted:
Quoted:
cool...he should try it with an AR15 next.. . If it is DI that is likely to end explosively. I was wondering if it would work......I did not think so. You'd need a piston AR. I'd be leery of a piston AR too, AKs have very loose tolerances. I would not volunteer to be the shooter of a piston AR underwater. Brings to mind what Robinson did with the XCR, shooting while swimming to shore. Hotlink |
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Posted: 7/23/2013 12:57:11 PM EDT
[#34]
A cool thread about Guns and science, on my ARFCOMs?
 
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Posted: 7/23/2013 12:58:35 PM EDT
[#35]
So who's gonna try it with an AR next?
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Posted: 7/23/2013 1:03:38 PM EDT
[#36]
I LOVE SCIENCE
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Posted: 7/23/2013 1:03:47 PM EDT
[#37]
Quote HistoryQuoted:
The cavitation bubble created by the movement of the charging handle is pretty cool to see. It looks almost alien like |
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Posted: 7/23/2013 1:07:41 PM EDT
[#38]
Very well done
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Posted: 7/23/2013 1:30:00 PM EDT
[#39]
so in theory if he went down to the deep end of the pool
pointed the AK straight up and did some fine tuning of the height of the gun he could get a 7.62 bullet to shoot up out of the water a few inches and then fall back down
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Posted: 7/23/2013 1:47:46 PM EDT
[#40]
Dupe, still nice to see again.
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Posted: 7/23/2013 1:51:27 PM EDT
[#41]
Fried my simple brain but really awesome video!
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Posted: 7/23/2013 1:52:10 PM EDT
[#42]
Quote HistoryQuoted:
huh Quote HistoryQuoted:
Quoted:
Quoted:
cool...he should try it with an AR15 next.. . If it is DI that is likely to end explosively. huh +1 I have seen DI guns fire under water with no problems. |
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Posted: 7/23/2013 1:55:38 PM EDT
[#43]
Super cool, loved the explanation as well.
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Posted: 7/23/2013 1:56:04 PM EDT
[#44]
Quote HistoryQuoted:
Would be cool if someone would get in and catch it. 
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Posted: 7/23/2013 2:08:49 PM EDT
[#45]
AquaBump!
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Posted: 7/23/2013 2:10:23 PM EDT
[#46]
That looks like a pretty clean trash can.
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Posted: 7/23/2013 2:16:48 PM EDT
[#47]
Looks like it fired just fine?
http://www.military.com/video/guns/rifles/shooting-an-ar-15-underwater/1170724009001/ |
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Posted: 7/23/2013 2:35:21 PM EDT
[#48]
Quote HistoryQuoted:
That is an awesome video, very well done. |
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Posted: 7/24/2013 8:47:50 AM EDT
[#49]
Quote HistoryQuoted:
Looks like it fired just fine? http://www.military.com/video/guns/rifles/shooting-an-ar-15-underwater/1170724009001/ I've seen many DI AR's fire underwater just fine. It is a myth that they blow up just like having any fluid in the bore bulges the barrel. |
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Posted: 7/24/2013 8:55:08 AM EDT
[#50]
Quote HistoryQuoted:
I've seen many DI AR's fire underwater just fine. It is a myth that they blow up just like having any fluid in the bore bulges the barrel. Quote HistoryQuoted:
Quoted:
Looks like it fired just fine? http://www.military.com/video/guns/rifles/shooting-an-ar-15-underwater/1170724009001/ I've seen many DI AR's fire underwater just fine. It is a myth that they blow up just like having any fluid in the bore bulges the barrel. They blow up when the material in the barrel is dis-continuous. A barrel full of air firing underwater = kaboom Barrel full of water firing into air=kaboom. Full of water firing into water=Generally OK (w/higher pressures), Full of air, firing into air=OK. |
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