Here is my small collection of .50 BMG rounds:
My identification is as follows:
Yellow/Red Spotter/Tracer (M48) PSD 06
Red Tracer (M17) SL 42
Black Armor Piercing (M8) LC 94
Natural Ball (M33) WCC 09
Green/White Raufoss (MK211) LC 10
Yellow FA 43
My question is: what is the last round (yellow tip in aluminium case)? Is it simply a training round?
Also, is my identification of the other rounds correct?