Both guns are layed and ammunition is brought up from the carriers in awaiting their fire orders. Note the men are not wearing much equipment. They are stationed about 2 miles behind the front line and try to be as ergonomic as possible. After all they are trained specialists with high precision instruments. Accurate controlling is vital to the success of the operation.
Remarkable is the type of ammunition box used for the .303 Inch Mk VIII Z cartridges. They are made of flimsy tin plate and therefore vulnerable to all kinds of abuse. Caution must be taken in order not to damage the boxes which can result in stoppages of the gun. The tin boxes are stored as a pair in larger wooden boxes for protection. To open these, the gunner must tear them open like fish cans.
Through the means of a field telephone connection the platoon HQ gives out the orders for the start of the barrage.
Both guns are firing in bursts, adjustments in elevation and traverse were necessary.
The gunner of No1 Gun is not a corporal, but bears the insignia (a worsted 'MG' with leafs) of the qualified machine gunner. This means he completed the training in such way he is even entitled to give instructions himself.
To distribute the fire from both guns equally over the target area a technique called tapping is used. Between each four-second burst the gunner taps his handles a few times sharply. Consequently the gun traverses and the bullets fall like a carpet over the targetline.