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There's a pretty amazing video here showing a Prince Rupert's drop defeaing a hydraulic press: https://www.youtube.com/shorts/ns7PQjjqHIo

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Yeah its not really what it looks like though. They put cylinders of soft metal in place of where you would expect the press to have hardened steel.

Has this been confirmed? The original channel also posted a comparison video [1] showing what seems to be the same cylinders tested against titanium and tungsten cubes (though it's difficult to be sure they are identical)

There's also footage from another channel [2] showing a Prince Rupert's Drop bursting at 20 tons with significant damage to both the steel plate and the press.

[1] https://www.youtube.com/watch?v=4SuPFbeqqKU

[2] https://www.youtube.com/watch?v=A6NUNroyUys

Slowed down: https://youtu.be/tRUngxK2yXY

You can see the steel deforming - definitely soft steel.

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