I am trying to find out what the old Government Explosive Category (GEC) was for incendiary small arms ammunition in any of the following calibres, 303, 7.92, . 50 Browning and .50 Vickers. Or for belts containing incendiary in mixed link. I think it should be GEC 6 Safety Class. Does anyone have any documentation or an original picture of a box with the relevant label.
Thanks in advance.
Thanks in advance.