ok, i've been wandering about this round i've had for years, and there're some things i want to know:
what year it was made in
what fired it, ack or tank
and anything else
things i do know:
its a 30mm round
brass casing
hurts when you drop it on your foot:o
its also has some marking on it:
just above the groove:306 CY 76 PRAC 4Z
in the groove:J30MM RG 76
here's a picture:
the whole round