14,5мм БНС - 14.5x147mm BNS, Russian. Can anyone provide information about this cartridge?

Image of this cartridge was posted by “Sleng1” here:

I assume this is a Soviet/Russian experimental cartridge.

Can anyone provide additional information?

Thanks,

Brian

PS: БНС (большой начальной скорости) = BNS (high initial velocity)

hello
yes this cartridge is mentionned in the book " Munitions militaires russes de Philippe Regenstreif

apparently it an experiment for high velocity AP
the belted case is the 23x152B necked down to 14.5

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Yes, and be aware of “copies”.

Thanks ammogun & EOD.

Any idea of the time frame for the development/experimentation for this cartridge? WWII?

Brian