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Rifling Barrels


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#26 Black Wrath

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Posted 17 August 2009 - 04:08 PM

Since trying to get a dart to spin inside a barrel seems impossible, what would happen if you hooked up a motor and had the entire barrel spinning with the dart inside it? If the barrel is spinning when the dart leaves it, the dart should continue spinning as it flies, right?


That would be beyond comical.
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#27 Lt Stefan

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Posted 17 August 2009 - 04:23 PM

Nerf darts don't travel fast enought for the grooves to make it spin. They would just add friction.
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#28 Split

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Posted 17 August 2009 - 05:45 PM

Why this fuck is this thread still active.

Every time this question comes up someone doesn't think it all the way through.

There are two types of stabilization of a projectile in motion... spin stabilization and mass stabilization. For example, the muskets that were first rifled to increase accuracy were firing round spheres of lead, which had terrible stabilization, so they needed to spin them in order to stabilize them in flight. On the other hand, a bow and arrow works by firing a very long, very front heavy projectile with a force at the rear end. This type of projectile doesn't need spin stabilization, and frankly it would be a waste of time, resources and energy. We properly weight our darts with 90% of the weight in front to naturally stabilize them in flight, since an object with weight near the front and a force at the back will be stable in flight.

There is absolutely no point in rifling a nerf barrel. PERIOD.

Actually, the bows were spin-stabilized. The fletching made it spin in flight. And mass stabilization only increases the range, not accuracy. Tiny imperfections in the darts could have them going all over the place.

Bpso knows what he's talking about here. Stabilization = accuracy, genius. The thread should have ended after his response to this, but I get the feeling that people just wanted to repeat others to increase their e-dick size.

Anyway, a few months ago in a similar thread, Slug suggested the same thing Velveeta is talking about. It works to spin the dart - it could even be made to seal very well. It's still pointless, seeing as it has no advantages and many disadvantages (off the bat - weight, recharging, cost, moving parts to reliability, slower reload). Rifling or a spinning barrel setup with just foam (since you are trying to get some advantages, substituted for the other method of stabilization), the low overall mass and terrible aerodynamic form will have huge amounts drag and go no where. Anything heavier will just not be nerf anymore.
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#29 IamSparticus

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Posted 17 August 2009 - 07:52 PM

the blasters that it would be useful on all take ridiculously long to prime.

That is why one would only use this gun for single shots from a concealed position. For example, a singled titan can draw blood at close range, but at longer ranges it is perfectly safe. It's accuracy doesn't permit these sort of shots, however.
When one shot is all you need, priming time isn't an issue.
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#30 IamSparticus

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Posted 17 August 2009 - 07:55 PM

Using a sabot you have the same problems as using shells, you have to load the dart into them.

If you have just a square piece of larger foam behind the dart, that won't be a problem.


A square piece of foam will not have a good seal in a riffled barrel. Also then your incresing the friction needed to propel the dart. The sabot would have to be shaped like the ammunition for early rifled cannons in the civl war.

by "Square" I mean a piece of foam as ling as it is wide. And yes, that shape would do it.


Even a cylindrical piece of FBR won’t have a good seal in a rifled barrel you’d need a foam that is less dense. In addition if the small piece of foam is propelling the dart then how will you get the dart to spin?

the force of the sabot on the end of the dart would be sufficient to create spin on a dart.
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#31 Black Wrath

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Posted 17 August 2009 - 08:16 PM

Why this fuck is this thread still active.

Bpso knows what he's talking about here. Stabilization = accuracy, genius. The thread should have ended after his response to this, but I get the feeling that people just wanted to repeat others to increase their e-dick size.

Anyway, a few months ago in a similar thread, Slug suggested the same thing Velveeta is talking about. It works to spin the dart - it could even be made to seal very well. It's still pointless, seeing as it has no advantages and many disadvantages (off the bat - weight, recharging, cost, moving parts to reliability, slower reload). Rifling or a spinning barrel setup with just foam (since you are trying to get some advantages, substituted for the other method of stabilization), the low overall mass and terrible aerodynamic form will have huge amounts drag and go no where. Anything heavier will just not be nerf anymore.


Can you explain to me how you didn't just repeat what many other people have already said in the thread?

If you wanted the thread to die, and were happy with your e-penis size, you would have left the thread alone.
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#32 nerfkid3

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Posted 17 August 2009 - 08:36 PM

Ok I have a idea you might be able to riffle with a tap and die set. I'll try it in small scale. If it works it would be amazing.


*EDIT my tests show that the riffled barrel shot twice as far as the smooth barrel. The only thing is it only works for short barrels unless you have a long tap and u need a bullet that was really tight in the barrel to start with and since my foam is low density it took to the grooves.

Edited by nerfkid3, 17 August 2009 - 08:56 PM.

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#33 MyRealName

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Posted 17 August 2009 - 09:33 PM

Even being a new member, I can tell that this is going on too long.

IamSpartacus... just get a titan, make a scientific test (rig to hold at level, many shots to eliminate effects of outliers, and make the barrel the only variable) and report what you have got. Show a video and everyone will be even more impressed.

Ideas look awesome on paper, but no one remembers anyone for the plan. Events are remembered by doing. I am excited to see what you find out! One way or another, you will come up with something that people can use.
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#34 Split

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Posted 17 August 2009 - 10:15 PM

Why this fuck is this thread still active.

Bpso knows what he's talking about here. Stabilization = accuracy, genius. The thread should have ended after his response to this, but I get the feeling that people just wanted to repeat others to increase their e-dick size.

Anyway, a few months ago in a similar thread, Slug suggested the same thing Velveeta is talking about. It works to spin the dart - it could even be made to seal very well. It's still pointless, seeing as it has no advantages and many disadvantages (off the bat - weight, recharging, cost, moving parts to reliability, slower reload). Rifling or a spinning barrel setup with just foam (since you are trying to get some advantages, substituted for the other method of stabilization), the low overall mass and terrible aerodynamic form will have huge amounts drag and go no where. Anything heavier will just not be nerf anymore.


Can you explain to me how you didn't just repeat what many other people have already said in the thread

Can you explain to me where anyone else has remotely discussed this beyond it being initially mentioned? Can you explain to me another way to end an overactive noobfest thread (since you clipped out my first line) than to shoot it down? Can you explain your sense of entitlement around here, or should we all just assume it's the "Joined 04" thing under your name, and extended lack of activity.
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Teehee.

#35 Black Wrath

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Posted 17 August 2009 - 10:19 PM

Can you explain to me where anyone else has remotely discussed this beyond it being initially mentioned? Can you explain to me another way to end an overactive noobfest thread (since you clipped out my first line) than to shoot it down? Can you explain your sense of entitlement around here, or should we all just assume it's the "Joined 04" thing under your name, and extended lack of activity.


You're making a fool of yourself.

Your sense of entitlement seems to be more out of proportion than mine could ever be.
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#36 Mr BadWrench

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Posted 18 August 2009 - 07:20 AM

Ok we have a couple of engineers and a hoard of school children arguing here.


This is real simple, If you do not have a degree, a job, or a repeatable result from a scientific test all you are doing is making yourself look like an idiot.

let me sum this up to some simple answers.

For the Kentucky rifle argument.

In case you have never shot an actual muzzle loading rifle, let me explain to you how this works. You take a lead ball or a miniball and literally pound it into the end of the barrel with a fucking hammer. then you hang from the ramrod with all your weight to force it to the powder/firing mechanism. YOU have a plastic barrel and a foam dart, the pressures required to fire even a piece of foam from a barrel with similar barrel to projectile fit is greater than you can make from a nerf gun.... The differences between a firearm and a toy gun are much greater than your Jr High educated brain can understand.

Sabot argument

While I am assuming you still wish to fire a foam dart... what kind of material do you plan on using for the sabot that will not adversely effect the flight of the projectile? Real firearms that use a sabot have LEAD,COPPER or STEEL projectiles with a weight difference between the sabot and the projectile of about 1000% Im sure it makes for a pretty drawing and all your teenage friends think its a great idea but it will not work....


standard rifling argument.

Rifling slows the projectile PERIOD... Kentucky rifles have ranges upwards of 1000 yards and a muzzle velocity close to 2000fps. Slowing down a bullet going that fast is going to have a different effect than slowing down a foam dart moving 100fps.


do some research and trust people who have degrees and experience.

Don
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#37 VACC

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Posted 18 August 2009 - 08:59 AM

How did this get this far?

Regardless of whether or not rifling is a retarded idea for a nerf gun, which it is, you have neither designed nor built anything to test these theories, which makes this a PURELY theoretical thread. In case you haven't noticed, we don't care for such things.

This is over.
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