A discussion about Tungsten Cored Ammunition (APCR/HVAP, and APDS)

What?

You wrote 16mm cores with 155g weight, as far as i know, they are indeed 150g, so it does add up and i havent seen 15mm cores.

From the link I posted earlier:

As you can see, there were no “150 g” cores manufactured by the German industry.

Hmm, then i suppose the british or american source had a rounding discreptancy, duo different mesure.

So in game 37mm Pzgr 40 should have 230g core.
Can i have the cover of that source?

No, that one (230 - 231g) is the core from Stuka 37mm ground attack canon.

Idk, can you? :P

I have posted a link to the thread where I got this page. As you can see these several pages are all he posted, I’m not hiding anything from you.

I have found such, in the suggestion i also put the page and by that doc it seems that some got S.m.K.H

And the core is that 135 or 155g?

It’s a 15x58mm core weighing 135g (±4g)

In this video, his example of 3,7 cm Pzgr. 40 core is 151,5 g

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The 15mm x 58mm Core is 135gm±4. with a 0.1mm diameter tolerance. So there could be some variability. The 37mm APCR rounds the US captured were 57.4 mm - 58mm long, and 15mm - 15.6mm diameter.

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Good news all: I calculated the penetration of both extremes, a 15mm - 135g core and a 16mm dia 155g core and the penetration differs between them by only 1 mm.

Apparently if all the extra mass is concentrated on the sides of the projectile, its extra kinetic energy is compensated by the fact that it needs to make a bigger hole through the armour.

Edit: Btw, my bad, previously I took the diameter value for the 37mm APCR from the soviet document from my memory, but the actual document gives the diameters of the 37mm and 50mm german APCR as 16mm and 20mm respectively.
image

I have a theory: prehaps, the early 37mm cores had 16mm dia, but as I have just shown, reducing it to 15mm does not markedly decrease its penetration. Perhaps at some point the cores were slimmed down a bit to conserve tungsten?

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He says that he had seen two types of tungsten cores inside the 28/20mm german subcaliber projectiles: one that is smaller in diameter than the one in the 20mm APCR and one of the same size. He speculates that the smaller one is early war model and the larger one is late war (idk on what grounds he does this, as he doesnt present any evidence about this)

Spoiler

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idk, but i think the video is neat, as it shows also the real deal.

He shows a German book which states that the entire tungsten supply of the Wehrmacht was turned into 20/28 cores, when the weapon was introduced, to prevent it from being used for different applications.

So they probably had an excess supply of 20/28 cores that were used for the 20mm Pzgr. 40 until they switched production to the heavier 12mm cores.

But in game L28 easyly pen mbt-70. And even Ogival shell.
Now I understand why tanks were made with spaced armor. In life they stopped tungsten carbide sabot projectiles, but in the game they do not protect anything.
It’s fail, gaijin.

The MBT-70’s hull armor is spaced but it’s not enough to stop L28 tungsten carbide cored APDS. It performs worse than L52 which is tungsten heavy alloy, but still goes through.

The same applies to the game.

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Unfortunately, in the game, a tungsten corbide projectile penetrates half of the hull of the same MBT-70. Punching through, among other things, the fuel tank and the internal partition. This clearly does not correspond to what is shown in the simulation and is minimally different from the damage in the game that we can get using tungsten alloy projectiles.

Spoiler


Estimated performance of the 75mm T45 HVAP:

100m: 186/133mm at 0/30° respectively
500m: 160/109mm
1000m: 126/86mm

Edit: Updated.

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But thats not out of the M3 right?

As far as I know 75 mm T45 HVAP wasn’t fired from any other cannon.

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How exactly would it reach such performance? What about the 7,5 cm Pzgr. 40 at 919m/s then? And at 930 and 990?