 In order to counter the modern Soviet artillery deployed in neighbouring Angola, South African officials began seeking longer-ranged weapons systems and were referred to SRC.Armscor trialled the GC-45 with a new mounting to allow for increased powder loads and installed an auxiliary power unit for improving mobility in the field.The resulting G5 howitzer was vital to South African campaigns against Cuban expeditionary forces in Angola, allowing them to target infrastructure and personnel with phenomenal accuracy.