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Bullet Drop formula - Printable Version

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Bullet Drop formula - Derosis - 2010-05-11

ENG:
Does anyone know it, and how the gun and bullet's weight and mass affect it?

DEU:
Hat jemand weiß es, und wie die Waffe (oder Gewehr) und bullet das Gewicht und Masse beeinflusst?


(It's in DEU as Some use DEUTSCH for Weapon's and etc.)

I can understand both so either way it would be good to go.


Bullet Drop formula - Hazzy - 2010-05-11

I'm not sure what you're asking....
The rate at which a bullet moves in the direction perpendicular to the ground would be dependent on how much the bullet weighs, its shape, spinning rate, air conditions, and a bunch of stuff. If you want to be exact, anyway. Just imagine you're dropping a bullet from your fingers if you want an approximation.
9.8 m/ss = a, 4.9t^2 = displacement. If the gun's 1.5m above the ground, it should hit the ground in sqrt(1.5/4.9) seconds?


Bullet Drop formula - Stereo - 2010-05-11

http://dsc.discovery.com/videos/mythbusters-simultaneous-bullet-release.html / on youtube

[video=youtube;D9wQVIEdKh8]http://www.youtube.com/watch?v=D9wQVIEdKh8[/video]
It's not really that complicated unless you need a lot of accuracy. The fired bullet hits a little later but it's a fairly small difference.


Bullet Drop formula - Sn1perJohnE - 2010-05-11

Stereo Wrote:http://dsc.discovery.com/videos/mythbusters-simultaneous-bullet-release.html / on youtube

[video=youtube;D9wQVIEdKh8]http://www.youtube.com/watch?v=D9wQVIEdKh8[/video]
It's not really that complicated unless you need a lot of accuracy. The fired bullet hits a little later but it's a fairly small difference.

Not exactly whats being asked I think.

I think hes asking what the rate of a bullet fired drops while flying.

If not, carry on with the win that is MythBusters.


Bullet Drop formula - MagicsBISH - 2010-05-11

derosis Wrote:ENG:
Does anyone know it, and how the gun and bullet's weight and mass affect it?

DEU:
Hat jemand weiß es, und wie die Waffe (oder Gewehr) und bullet das Gewicht und Masse beeinflusst?


(It's in DEU as Some use DEUTSCH for Weapon's and etc.)

I can understand both so either way it would be good to go.

This is not really german dude. (And I doubt that many ppl here know that DEUTSCH = GERMAN is. Thats only weird. Im german and i cant really understand these sentences o.O


Bullet Drop formula - Derosis - 2010-05-11

MagicsBISH Wrote:This is not really german dude. (And I doubt that many ppl here know that DEUTSCH = GERMAN is. Thats only weird. Im german and i cant really understand these sentences o.O

Really, I guess I must have messed up, I was expecting some so I could brush up... I'm heading to Germany this summer. Guess i'm not so familiar with it anymore. So ein mist...

Hazzy Wrote:I'm not sure what you're asking....
The rate at which a bullet moves in the direction perpendicular to the ground would be dependent on how much the bullet weighs, its shape, spinning rate, air conditions, and a bunch of stuff. If you want to be exact, anyway. Just imagine you're dropping a bullet from your fingers if you want an approximation.
9.8 m/ss = a, 4.9t^2 = displacement. If the gun's 1.5m above the ground, it should hit the ground in sqrt(1.5/4.9) seconds?

That's what I'm looking for, thanks.


Bullet Drop formula - Hazzy - 2010-05-11




Bullet Drop formula - Derosis - 2010-05-11




Bullet Drop formula - Hazzy - 2010-05-17

I was playing with this today, talking about Bullet Drop in video games, and I'm curious if anyone knows how fast bullets drop. xP
Using Free Fall, a sniper using an M40 would need to aim 70 feet above their target at a mile away to land a hit, ignoring spread and recoil disturbances.

Edit:
On the other hand, that shot would require an inclinaton of the muzzle of... 0.744 degrees?


Bullet Drop formula - Stereo - 2010-05-17

Hazzy Wrote:On the other hand, that shot would require an inclinaton of the muzzle of... 0.744 degrees?

That's why snipers have to dial the range into their viewfinder. It shifts the crosshairs so they're at an angle to the muzzle.

And at a mile, 70 feet is a little over 1% of the distance traveled. A mile really is a long way to shoot a bullet accurately.



Bullet Drop formula - Hazzy - 2010-05-17

Trying to find how long it takes the bullet to travel from muzzle to target. Do I find the length of the arc the bullet makes, then apply muzzle velocity to that, or something else? Bullet travels in an arc, so muzzle velocity * distance to target should underestimate the time.