Why dont Round Bullets is not a thing

>>31907459
>what is rifling
>what is aerodynamics

>>31907484
>what is round

>>31907459
You're 150 years too late to be making this argument

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>>31907459

No need to have rifling tanks do not have them the rifling can be on the bullet herself and A round bullet is more aerodynamic

>>31907459
Round bullets have poor BC compared to roundnose and spitzer, so it loses energy faster.
Spheres ARE more stable, but rifling fixes that for modern bullets, negating the stability advantage of spherical bullets.

>>31907523
I bet you think the new ugly shape of cars now (think Prius hatchback ugliness) is aerodynamic

>>31907583
spheres are definitely not more stable if they get a spin in any direction and nothing is stopping them from getting it in fact they will most likely get a spin they will weer away in that direction due to gauss effect.

also the most aerodynamically stable form is the teardrop.

>>31907459
Maybe as railgun ammo since I doubt you could rifle a railgun.

Why don't they make shot with dimples in them like golfballs?

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>>31907700
>This anon doesn't even know what a rail gun is, let alone fin stabilizers, let alone what the Lorentz effect is.

It's Saturday anon, go to the library and read a damn book.

>>31907490
>what is love

>>31908352
>baby don't hurt me

>>31907459
>proving how easy it is to troll /k/ now

>>31907700
not good as railgun ammo, you need relatively large surface of contact for forming plasma for conductivity.

>>31907730
Read for me please

>>31908365
>no more

round bullets cant tumble like baby killing 5.56 and turn 90 degrees to cause more internal damage when shooting up a school or theater.

>>31907523
Tanks don't have rifling because rifling is useless or even detrimental for APFSDS.

>>31907703
Dimples are pointless without backspin.

>>31907459
>implying after 150 years the entire world has been purposely using the wrong bullet and no one ever gave a shit.

>>31907700
Navy's rail gun uses a sabot to propel the self-stabilizing dart. It is a solid armature rail gun. A plasma armature actually ionizes the projectile (aluminum works for this) and fires a jet of plasma out. A hybrid armature rail gun ionizes part of the projectile and propels the rest of the projectile down the barrel.

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>>31907459
OP is right autism are the superior beings round bullet flys straight true boat tail bullet can never compete against our superior autistic thoughts why even try

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>>31909457
False!

>>31907459

What if it keyholes?

>>31910085
The vast majority of tanks have smoothbores.

>>31909538
Sabots are a big fat meme spun by people who want to try and sound like they know what they're talking about when they repeating what they heard online from someone trying to sound like they know what they're talking about.

>>31907459
>we wuz ROUND n sheeit

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>>31907459
Oh my god, you fucking autist, shut the fuck up.

>>31912143
you sound stupid desu

sabot has a very important role in ap technology maximizes the surface for acceleration and minimizes the surface for impact.

for railguns the reason is different you need space between the armature but you also need surface to conduct the electricity and generate plasma but you don't want to fire a projectile deformed or marred or that wide for that matter. you you make a brick shaped sabot for the projectile.

>>31910085
britbongs use special sabots for that gun if i remember correctly they counteract the rifling with bearings.

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>>31907523
>A round bullet is more aerodynamic

Which do you think is more aerodynamic?

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>>31910085
Except they use special snowflake sabots specifically designed to rotate independent of the projectile. Literally the only reason why they use rifling is their dumbass fucking HESH rounds.

>>31912363
the bullet will have a lot more drag for the mass than a ball

>>31907459
It's called a musketball you clown

>>31907484
FBPB

>>31907459
>téléchargement
Canada ou France?

>>31909224
Yes, but they can hit the ground and roll, allowing them to take the feet off of people even if they run uphill

>>31907621
Protip, it is

>Tanks don't have rifling
>>31912096
>>31912336
>>31912407
Still patently and demonstrably false!

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>>31907523
>the rifling can be on the bullet herself and A round bullet is more aerodynamic

>2016
>not having rifling on your round, female boolit

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>>31914435
Oh I see what's going on here.

I don't want your mother to finally kick you out of the house because you smashed open a bag of rice, presumably to count the grains to soothe your painful assburger rage. So having said that, just to satisfy your crippling autism, I will confirm that the quoted statement is actually false.

>>31914557
>bitching about firearm and weapon related autism on /k/
you don't have to stay here, you're welcome to go back to >>/v/

>>31914582
>reee stop making fun of me normie!!!

If you act like a retard you shouldn't be surprised if you're treated like a retard. Don't sperg out at me, I didn't make you this way.

Also that's not how you link to a board, dumbass. Containment is this way: >>>/r9k/

>>31907523
How the fuck are you gonna rifle a sphere? It practically ceases to be a ball at this point, and if we're gonna give it a gyroscopic spin we go for an oblong shape, and woop, we're already at the Minieball stage.

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>>31907459
OP. This chap would like a word with you.

>>31912363
Someone doesn't know how to physx

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>>31907523
>>31912621
>>31915576

Read a book or two.

>>31916815
i don't get the sphere the 0.07 looks about right 0.5 is just too much

>>31914435
there is literally only 1 modern mbt that still uses rifling and that's the chally2.

even the m60-2000 has a smooth-bore and it's a fucking patton

>>31917019
Sorry about that. It has to do with the smoothness of the sphere.

As a general rule, the drag coefficient doesn't stay constant. At supersonic speeds it'll be different than at subsonic speeds.

Considering that, the ballistic coefficient is probably a better measure of aerodynamic efficiency.

http://www.exteriorballistics.com/ebexplained/articles/the_ballistic_coefficient.pdf

You also have to consider shock structure formation and turbulence in the wake.

http://www.nasa.gov/sites/default/files/thumbnails/image/edu_what_is_supersonic_flight.jpg

https://s-media-cache-ak0.pinimg.com/236x/61/bc/cc/61bccc12ae9ebfcfb4144244d6d464e0.jpg

https://www.youtube.com/watch?v=Nwx4MWJcS_A

https://www.researchgate.net/profile/Mario_De_Stefano_Fumo/publication/223338249/figure/fig1/AS:305142680309780@1449763092938/Fig-1-Schematic-of-supersonic-flow-around-a-sphere-cone-configuration.png

>>31916815
Alright, so why are bullets not teardrops?
Sure, it may be trickier turning explosive power into force, but once you can do that you've got one speedy bullet.

>>31907459
>why aren't round bullets a thing

But they were...
200 fucking years ago

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Why not ammo in the shape of a cube? It would have more stopping power.

>>31910085
autismotank

tip your kettle and gtfo

>>31917484

So, you've honestly never seen a boattail bullet?

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>>31917484
Probably because its difficult to make, and the reduction in drag is not worth sacrificing the reduction in energy for.

You could just do something like this and achieve the best of both worlds.

>>31917909
it was made for combat shotguns to pierce frag vests. it was deemed unethical like unnecessarily cruel or some shit.

I think you guys are concentrating too much on how the bullet flies through the air and not enough on how it flies through a person's leg.

I think there's two different arguments here and one of them is that round bullets should make a comeback in certain limited applications, such as crowd control.

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>>31918062
>>31917909
There was always the puckle gun.

The square projectiles were meant to be shot at muslims.

>>31918197
>round bullets should make a comeback in certain limited applications, such as crowd control
Shotgun loaded with 000 buck.

>>31907459

This board should have a literacy test.

>>31918558
Checked your bracketing doubles, eight and five are my favorite numbers.

000 buck is basically 9mm bullets, and I tried to make some ghetto 000 by just straight up throwing some 9mm bullets in with some smaller shot. Holy fuck does it spread wild but I know it fucking wrecks rottweilers chasing cattle.

>>31908468
>*pumping the jam intensifies*

>>31907459
Round ball in a particular caliber can be one size only. Hence, one weight only. Why would you limit yourself to that? Terminal energy depends on velocity and bullet weight. Bullets can be many lengths, shapes, and weights for multiple applications.

>>31913082
nope
it creates a huge vacuum behind the car at reasonable speeds
they're only useful under 45 MPH