The NS Infantry Discussion Thread, L5A1

[Yukonastan]

(Image)

Since we're discussing flechette/comparable ammunition, have my take on an experimental belted 7.62x51mm :not:NEATO flechette cartridge.

Not only does that cartridge probably not require a belt, I'm not even certain it has a belt.

Shaddup. I like belted cartridges. Belted cartridges are cool.


You know that I mean the belted rim of magnum cartridges, right? Not the belt that machine guns feed.
Edit: Ithica M37 for Page 37.

[Spreewerke]

Not only does that cartridge probably not require a belt, I'm not even certain it has a belt.

Shaddup. I like belted cartridges. Belted cartridges are cool.


You know that I mean the belted rim of magnum cartridges, right? Not the belt that machine guns feed.

He isn't as stupid as you seem to think he is.

It took multiple looks at the image for me to even see anything close to what could be considered a belted cartridge.

[Yukonastan]

Shaddup. I like belted cartridges. Belted cartridges are cool.


You know that I mean the belted rim of magnum cartridges, right? Not the belt that machine guns feed.

He isn't as stupid as you seem to think he is.

It took multiple looks at the image for me to even see anything close to what could be considered a belted cartridge.

I know, and I wish I still had the file.

But I've completely formatted my laptop hard disk and reinstalled from a two week old backup, so I don't have the original any more. All I have are those gyazo links.

Edit:
I do still have this, you can see the belt far clearer on here.

[The Archangel Conglomerate]

PC issues? If it helps, mine is out of commission because I dropped the power brick into a bucket of water. I quite like the cartridge, by the way. Very well done.

---

Pros and cons of the Très Haute Vitesse style projectile?

[Nirvash Type TheEND]

Don't belts aid in proper feeding/extracting somehow? The only example I can think of is the .300 WSM.

[Yukonastan]

PC issues? If it helps, mine is out of commission because I dropped the power brick into a bucket of water. I quite like the cartridge, by the way. Very well done.

---

Pros and cons of the Très Haute Vitesse style projectile?

File system issues, and I lost sixty gigs of space to a Windows partition which, when I uninstalled it, went into a black hole.
And when I started to fix it with diskutil, the file system crapped out entirely. So a reflash was in order.

Thanks by the way, I -may- redraw the cartridge, since even though I don't have the original files, I do have the gyazo pngs that I've posted.

What's a THV projectile? Do you mean a VLD bullet or a nipple gattery?

Don't belts aid in proper feeding/extracting somehow? The only example I can think of is the .300 WSM.

Headspacing of magnum cartridges. Plus they look sexy.

[The Archangel Conglomerate]

File system issues, and I lost sixty gigs of space to a Windows partition which, when I uninstalled it, went into a black hole.
And when I started to fix it with diskutil, the file system crapped out entirely. So a reflash was in order.

Sounds like you had a grand time.

Thanks by the way, I -may- redraw the cartridge, since even though I don't have the original files, I do have the gyazo pngs that I've posted.

A 7,2mm Yuko version may make a decent entry to your shop. Do one for the 7,2x24mm Yuko too. You know you want to.

What's a THV projectile? Do you mean a VLD bullet or a nipple gattery?

Deez uns. I've heard they were quite decent, both in terms of ballistics and armour penetration. I imagine a 3,2mm dU or WC version would be pretty dope.

[Yukonastan]

File system issues, and I lost sixty gigs of space to a Windows partition which, when I uninstalled it, went into a black hole.
And when I started to fix it with diskutil, the file system crapped out entirely. So a reflash was in order.

Sounds like you had a grand time.

Yep, spent the six or seven hours of drive reformatting and data restoration on Reach with my sister, supper, two hours of driving for an hour of piano lessons, and then another couple hours of waiting.
I do most of my stuff on GDrive, so all I really lost was Edge of Tomorrow and that flechette round.

Thanks by the way, I -may- redraw the cartridge, since even though I don't have the original files, I do have the gyazo pngs that I've posted.

A 7,2mm Yuko version may make a decent entry to your shop. Do one for the 7,2x24mm Yuko too. You know you want to.

It'd definitely make more sense in-canon to use my standard case as opposed to creating a whole new case and rifle just for testing some exotic ammo.

What's a THV projectile? Do you mean a VLD bullet or a nipple gattery?

*snip*
Deez uns. I've heard they were quite decent, both in terms of ballistics and armour penetration. I imagine a 3,2mm dU or WC version would be pretty dope.

Ah, so nipple gatteries. Ask Aziquithda about these.

[Tule]

If I remember correctly, THV projectiles had excellent armor penetration and created wide wound channels, but put a heavy strain on the guns that fired them, did not penetrate flesh deep enough and had a very short effective range.

[Aqizithiuda]

If I remember correctly, THV projectiles had excellent armor penetration and created wide wound channels, but put a heavy strain on the guns that fired them, did not penetrate flesh deep enough and had a very short effective range.

Most of the AP ability probably came from the solid construction and high velocity, rather than the design, and I'm not sure how it would fair against a hard or thick object.

[Fordorsia]

nipple gattery

haha, nipple

[Sevvania]

nipple gattery

haha, nipple

Hhheh.

[Sediczja]

Edit: Ithica M37 for Page 37.

I like how you underlined the numbers so us simpletons could make the link easier

:d

[Yukonastan]

haha, nipple

Hhheh.

That's how I first found out about THV, while trolling around the GatFacts twitter account. By someone having replied to that image with "WHERE CAN I BUY THESE NIPPLE GATTERIES".

Yes, I know what a percussion cap nipple is.

Edit: Ithica M37 for Page 37.

I like how you underlined the numbers so us simpletons could make the link easier

:d

Hey, people may have thought it was something for page 94, with all the metric/imperial conversions we do for calibre and shit. You have to be redundantly clear.

[The Archangel Conglomerate]

If I remember correctly, THV projectiles had excellent armor penetration and created wide wound channels, but put a heavy strain on the guns that fired them, did not penetrate flesh deep enough and had a very short effective range.

Most of the AP ability probably came from the solid construction and high velocity, rather than the design, and I'm not sure how it would fair against a hard or thick object.

E: Found the link. Turns out I misremembered some bits. THVs are defiantly not ideal for military service.

Stupid question. To get the amount of energy at 500m per kilogram of ammunition, you take the calculated energy and multiply it by the number of cartridges that fit into a kilo, yes?

[Imperializt Russia]

Not only does that cartridge probably not require a belt, I'm not even certain it has a belt.

Shaddup. I like belted cartridges. Belted cartridges are cool.


You know that I mean the belted rim of magnum cartridges, right? Not the belt that machine guns feed.

The cartridge you posted appears to be just tapered.
Cartridge belts are what it headspaces against. ie, they're hefty. Yours is anything but hefty.

[Aqizithiuda]

If I remember correctly, THV projectiles had excellent armor penetration and created wide wound channels, but put a heavy strain on the guns that fired them, did not penetrate flesh deep enough and had a very short effective range.

Most of the AP ability probably came from the solid construction and high velocity, rather than the design, and I'm not sure how it would fair against a hard or thick object.

E: Found the link. Turns out I misremembered some bits. THVs are defiantly not ideal for military service.

Stupid question. To get the amount of energy at 500m per kilogram of ammunition, you take the calculated energy and multiply it by the number of cartridges that fit into a kilo, yes?

Yes. It's usually expressed in kj/kg

[The Archangel Conglomerate]

Yes. It's usually expressed in kj/kg

Hmm. Then I must be doing something wrong, because there's no way a 3,2mm cartridge is going to give 119kj/kg.

Let's see. . . First we need the velocity, which Powley gives to be 987m/s from a 42cm barrel. Projectile is a 1.6g, 3,2mm dU slug inside a .19g, 3,6mm polymer sabot.

Lumping that lot into the JBM gives us an energy at range of 376,5j.

Next we find ourselves in need of a cartridge weight. The published weight of the 4,7x33mm is 5,2g, with a 3,33g projectile. That leaves us 1,87g of. . . other stuff. Since my cartridges is, over all, a 4,73mm cartridge that's been scaled down by 27%, that leaves us with 1,365g other stuff, and 1,79g of projectile, for a total weight of 3,15g per cartridge.

[Imperializt Russia]

Your cartridge is exceedingly light. Unless you've made a mistake somewhere your entire cartridge is less than the projectile weight of 5.56mm cartridge.

It's understandable that an extreme such as this would skew the comparison significantly in its favour - since you can apparently bring three hundred and seventeen (and a half) cartridges per kilogram without clips or magazines, while a kilogram of 5.56 cartridges (M855, apparently heavier than M193) would limit you to a mere 81.2 cartridges. To carry the same quantity as your 3.2mm cartridge would be about 3.9 kilograms - without clips or magazines.

[The Archangel Conglomerate]

Your cartridge is exceedingly light. Unless you've made a mistake somewhere your entire cartridge is less than the projectile weight of 5.56mm cartridge.

That's been bugging me, actually. I can't see how the entire cartridge could be lighter than a 5,56mm bullet, but I cannot see where I went wrong either. Any ideas?

[Purpelia]

Your cartridge is exceedingly light. Unless you've made a mistake somewhere your entire cartridge is less than the projectile weight of 5.56mm cartridge.

That's been bugging me, actually. I can't see how the entire cartridge could be lighter than a 5,56mm bullet, but I cannot see where I went wrong either. Any ideas?

Show me your math. How did you figure the weight out?

[Imperializt Russia]

Your cartridge is exceedingly light. Unless you've made a mistake somewhere your entire cartridge is less than the projectile weight of 5.56mm cartridge.

That's been bugging me, actually. I can't see how the entire cartridge could be lighter than a 5,56mm bullet, but I cannot see where I went wrong either. Any ideas?

In fairness, the 4.7mm HK round is only just heavier than 5.56mm projectile, and about two-thirds the weight of a 7.62mm projectile.

[The Archangel Conglomerate]

Show me your math. How did you figure the weight out?

I multiplied all measurements by ,73. It worked for the projectile dimensions, and the cartridge dimensions, which fit the dimensions of a scaled 4,73x33mm cartridge, so I figured it'd do for the weights.

The stated weight for a 4,7mm cartridge is 5,2g, with a 3,33g bullet. 5,2-3,33=1,87g. 1,87*,73=1,36g.

The projectile I did is 1,68g, and has a ,194g sabot. Both together are 1,87g.

1,87+1,36=3,23g total weight per cartridge.

Maths has, admittedly, never been a strength of mine, but I don't think I'm too badly wrong in this.

---

In fairness, the 4.7mm HK round is only just heavier than 5.56mm projectile, and about two-thirds the weight of a 7.62mm projectile.

Amazing, isn't it?

[Imperializt Russia]

Weight is a component of volume (assuming equal density), which is a cube function of the dimensions. There may be a slight difference not shown by a simple 27% reduction of all characteristics. I would expect it to weigh... more than 73% original mass? Not sure.

[The Archangel Conglomerate]

Weight is a component of volume (assuming equal density), which is a cube function of the dimensions. There may be a slight difference not shown by a simple 27% reduction of all characteristics. I would expect it to weigh... more than 73% original mass? Not sure.

As I understand it, no changes to the propellant density means that the weight should scale normally. If I have a steel cube that weighs 100g, and I shave it down by 25%, logic says it should weigh 75g.