Magazine Stored Loaded

[browningautorifle]

Not sure about magazines from WWII but after the Battle of Long Tan (18th August, 1966) in the Phuoc Tuy Province of South Vietnam, the Australian Army adopted the practice of emergency ammunition resupply to troops in the field using loaded magazines in bandoleers.

This is what I asked earlier. I'm tired of conjecture...I want history. I know it was done, I just don't have solid evidence or testimony.