5.56x45mm cartridge ID

Hi guys,

I have the 5.56x45mm cartridge shown in the photos below. Does anyone know type and manufacturer?



20200514_001940
Thank you

SUDSTEIRISCHE METALLINDUSTRIE GmbH, Austria

black tip listed as AP

Shamelessly pulled from Fuchs’ list
https://drive.google.com/open?id=0B4gsAWd5wuKgUE0tck51U2RMQnc

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Is it “IIIB”? I am not sure what I am reading.

IIIB is what I read.

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Thank you!