20mm projectile ID

[Burney Davis]

Can anyone ID this projectile please. No markings and measures 20mm x 54mm. TIA

 

[MINENAZ16]

Hello,
As far as I know this short russian 20mm is 54mm long.
Not exactly the same (different tracer element) but no other idea.

 

[AKON_]

HI MINENAZ16
I continued your correct idea a bit...

Боеприпасы авиационных пушек "ШВАК", "ТНШ", "Б-20" - Альтернативная История

Боеприпасы авиационных пушек "ШВАК", "ТНШ", "Б-20" - Альтернативная История

alternathistory.ru

This is one of the development versions of the 20mm T cartridge.

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Hi Burney Davis According to the data, the bullet should have 8 right- grooves. Is this true on your specimen?
Akon

 

[AKON_]

In the archive fund: Air Force Command (Fund 29), inventory no. 40 . I found a record of 5 sheets for the 20mm T cartridge. Or rather, about its tests at the firing range. Dated to 1939.




In the archive fund: 20 : GAU , , inventory no. 24 . Development of 20 mm Svak ammunition (include T) I found a record of 65 sheets..Dated to 1936-37.

The Russian State Military Historical Archive: A Guide

The Russian State Military Historical Archive (RGVIA; Российский государственный военно-исторический архив) is one of the largest archives in Russia. Its

geohistory.today