6. Test action of mechanism by rapidly opening and closing breech several times. It should work freely and smoothly.
OPERATING THE GUN.
In firing, the prone position will be taken ordinarily, the barrel rest being used to steady the gun.
In high grass or under conditions where more height is desirable, ammunition boxes may be placed under the barrel rest so as to increase height.
In short, any sort of rest available may be used, for instance, the top of a parapet or the limb of a tree.
In going into action the following operations must be performed:—
(1) Set barrel rest.
(a) Free legs from their catches. (b) Turn legs forward until at right angles to barrel. (c) Open legs with a sharp movement such that the separators catch in one another. (d) Place the feet in desired position and force points into the ground.
(2) Mount elevating mechanism.
(a) Place elevating mechanism foot on ground in such position that it is at right angles to axis of gun. (b) Bring gun to approximately the required elevation by turning outer elevating screw.