Royal Naval Wagons into Dean Hill (Wilts) Ammo Tunnels

I am hoping that some kind soul could tell me if there were any specific Royal Navy or WD specialist wagons ever used to transport munitions to such places as the tunels at Dean Hill? This site north of Southampton, was opened in 1941.

You can read about it here.

A photo of any traffic would be brilliant ut given the security surrounding it, I know this to be unlikely.

falling anything specific, any photo of RN-related freight movements would also be very welcome.

many thanks,
Dippy

During WW2, munitions were usually carried in open wagons. There are some occasions recorded where either a wagon developed a fault and caught fire, sparks from the engine started a fire or enemy action. The most noted event of these was at Soham in 1944, which involved bombs rather than navel munitions, where the wagon behind the engine caught fire. The train crew uncoupled it from the rest of the train (also full of bombs), went with it to the signal box to explain their intention to take it forward into open country when it blew up, killing the fireman, signalman and badly injuring the driver. The loco crew were given the George Cross in recognition of their efforts.
I assume that once at Dean Hill the munitions were transferred into narrow gauge railway wagons for subsequent storage.