I have some more information on the German/Swiss 140mm prototypes. The Swiss 140mm had a 1000mm long APFSDS with a muzzle velocity (MV) of 1800m/s or 1900m/s. Using some pixel measurements, we find a diameter of approximately 30mm, which (depending on density) gives us a penetration number ranging from 970mm to 1065mm at 0°. Other than that slight correction, I have little to add.
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Is that a big 140mm HE round?
Great find! Gaijin please at least one 140mm armed mbt this year.
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Afaik U.S., U.K., France and Germany followed a list of harmonized parameters for their 140mm guns, so their performance should be more or less equal. If i’m not mistaken U.S., France and U.K. used DU for their penetrator while Germany used tungsten. All 140mm guns designed under the agreement shared the same chamber volume of 20L and barrel length (L/48).
According to this page of the Block III/ATAC System brochure, the XM964 penetrator is about the same length as the whole forward part of the 2 piece round which is ~1m long.
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That image doesn’t show XM964, but it shows the British made 140mm APFSDS next to their 120mm APFSDS, which was planned to be used for Britain’s FMBT project during the 80’s. For some reason a lot of people fell for some reddit post saying it is the XM964, but it isn’t. It’s even currently stored in Britain, alongside it’s British made 140mm cannon, which was meant to be carried on the Evolutionary National Tank
This however is the XM964
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As for this, this was confirmed to not be a 140mm, just being a normal WZ1001
HOWEVER, a 140mm APFSDS shell was tested in China, but I cannot find any images
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Wait seriously?
Yup, every other source I see with it also has it wrong then. Thank you.
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The 120mm round is likely to be a demo DM53:
Although the text is barely readable, you can make out the “53” somewhat.
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So I took a look at some American primary sources on the CATTB, ATACS gun and XM964 140mm. From these sources we can infer a penetrator that is 850x30mm (not the best pics though). On the other hand, a Chinese source lists the muzzle velocity for XM964 at 1870m/s. This is the resulting penetration performance estimated through L-O:
At that velocity it makes no difference. And at 0 degree it pens 863mm.
obviously the 1.5mm will make a massive difference
From where the 860mm come from? Is people using this ?
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Old estimations, can’t remember.
Have anything better?
IMO its make sense. Some random guy posted that he has a replica of the XM964 and he said this “I’m 5’7” and own an actual model of the Xm964 140mm Sabot for the XM291. It’s at my chin.”
Yes, they’re quite large. I’m hoping to see both the Object 195 and CATTB in game.
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It’s been awhile since I’ve done anything with penetration, is this the formula Gaijin uses?
I’d like to get the CATTBs penetration figured out so I can display it, I also think the Grifel is off and the Swiss one.