If you had a 6mm and .30cal and both bullets went the same speed will they both fall at the same point?
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If you had a 6mm and .30cal and both bullets went the same speed will they both fall at the same point?
Almost definitely not unless they had exactly the same bc
And weight, more mass means more momentum and better retained velocity for the same BC.
That's what I was thinking but I couldn't think of a easy way to ask Google so you lot had to do.
JBM Toby
However Toby, in a vacuum they would theoretically. Its pushing through the air that makes the difference;)
You wouldn't be able to shoot in space because there is no oxygen?
Same velocity but more energy for the heavier projectile right?Quote:
Originally Posted by Spudattack
How does a compressed load fire then Toby?
Google explosives and how they work(I dont want a visit from the feds:ORLY:) Im pretty sure most explosives generate there own oxygen but have been wrong before.
yesQuote:
Originally Posted by Wildman
Quote:
Originally Posted by Spudattack
Nope. BC takes into account weight.
Attachment 9023
(M is Mass)
How do you think they move the ISS and satellites about in space. They use liquid oxygen but there is a bit of air (O2) in a cartridge so I'll bet it will still maintain velocity.Quote:
Originally Posted by Toby
The Straight Dope: Would a gun work in space?
I'll take your word for it VC
The bullet would never land anyway as there is no gravity in space so the whole thing would not work!
Pretty sure nitro powders make their own oxygen but I could be wrong.
Why would you need to shoot in space Toby?
yep pretty sure weight doesnt have anything to do with bullet drop, just bc. Chuck it in on you ballistics callculator, e.g a 200grain bullet with bc of .5 going 3000fps will have the same drop as a 100grain bullet with bc of .5 going 3000fps
Quote:
Originally Posted by Toby
Gunpowder contains an oxidising agent, I don't think it requires any external oxygen.
Heard of one mars or something. Im gonna be the first man to hunt on mars. Nah I dont but doesnt hurt to know if its doable
To take out the Martians when we collinise mars:yaeh am not durnk:
Ah, fair enough, never seen that equation before!Quote:
Originally Posted by gimp
I take it Cd is drag coefficient? What are the A, p and l?
BC = ballistic coefficient as used in physics and engineeringQuote:
Originally Posted by Spudattack
M = mass
A = cross-sectional area
Cd = drag coefficient
ρ (rho) = average density
l = body length
Bullet BC calculation is different but still takes mass into account.
Attachment 9024
BC = ballistic coefficient
SD = sectional density, SD = mass of bullet in pounds or kilograms divided by its caliber squared in inches or meters; units are lb/in2 or kg/m2.
i = form factor, i= CB/CG, (CG ~ 0.5191)
CB = Drag coefficient of the bullet
CG = Drag coefficient of the G1 model bullet
M = Mass of bullet, lb or kg
d = diameter of bullet, in or m
why is drag coefficient cd and not dc?
DC is direct current? Co-efficient of Drag
DUH space hunting, shooting back at Martians, target practice on the moon, skeet shooting on Jupiter etc etcQuote:
Originally Posted by Spudattack
You cant stand on Jupiter Rushy.Quote:
Originally Posted by Rushy
Don't believe it unless you have been there and tried to do it yourself.Quote:
Originally Posted by Toby
I believe you can fire projectiles from Uranus
Well played Lentil. Yes you canQuote:
Originally Posted by Lentil
The BC must be pretty shit! Ba boom tish!Quote:
Originally Posted by Lentil
Well this thread has turned to shit!!
Pretty stink
Teach them, our guns work in space
Just run the bastards over remotely with Curiosity! Then shoot them with the laser!
