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Bollywood inspired question for Defence experts.

adil_minhas

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This question has been bugging me for a few days (since Sunday). I heard that the muzzle velocity of guns is such that short of a high powered rifle, a round from a gun such as an AK47 etc. when it hits water loses most of its penetrating momentum and thus renders firing into water virtually ineffective.

There is a scene in the movie Phantom (banned in Pakistan, but am sure some may have seen it on CDs?) where Saif and Katrina are submerged underwater to hide from the Pakistani coast guard. The Captain orders his guys to fire into the water. Bullets are whizzing by underwater and Saif covers Katrina to protect her.

Then a bullet hits him. And it eventually causes him to die (Leonardo Caprio style falling away underwater in Titanic).

Is something like this possible? Can a bullet that hits the water, fired reasonably high up from a ship, still carry enough momentum to penetrate soft tissue and vital organs of a human body to cause fatality?

@Irfan Baloch @third eye @DESERT FIGHTER
 
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This question has been bugging me for a few days (since Sunday). I heard that the muzzle velocity of guns is such that short of a high powered rifle, a round from a gun such as an AK47 etc. when it hits water loses most of its penetrating momentum and thus renders firing into water virtually ineffective.

The muzzle velocity of AK-47 is 715 m/s and when it touches the surface of the water then first thing that it had to encounter is the surface tension of the water (which is variable because of different factors.) Alongwith it it depends upon drag coefficient of the bullet and density of the water, from which height was the bullet fired and how deep was diver. So its a relative situation and there are many Ifs and Buts when we talk of this very aspect.
 
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