Major step in War Fighting

[byf]

Here is a pic of the BIG 4 machine gun rounds from the European Theatre. byf

1. US M1 .30cal,Frangible SL 43

2. British .303, Incindiary SR 43 BVIIZ

3. German 7.92mm, Tracer S* 17 38 P151

4. Russia 7.62x54R , (orange tip?) 60 41