=4. Firing from Cover.=--(i) In firing from behind cover, the position adopted must be such as would enable the firer on service to obtain the fullest protection from the cover, having due regard to the efficiency of his fire. In the prone position, the grip of the left hand must be maintained on the rifle, and there must be no undue exposure of the shoulder or legs. (ii) In firing from behind cover, the butt of the rifle will be in contact with the ground, and the firer will remain in observation, but otherwise completely covered, until the command “_Rapid Fire_” is given in rapid-firing practices, or the target appears in “Snapshooting” and “Crossing-Shot” practices. When snapshooting or firing rapid in the open, the rifle may be held in the loading or aiming position, as preferred. =5. Jambs.=--In the event of a jamb occurring in a timed practice, and provided that it is not caused by any fault on the part of the firer, the time allowed for the practice will be increased to the extent due to the delay caused thereby. Should, however, a jamb in a rapid practice be due to a breakage of mechanism or other defect that cannot readily be rectified on the range, the whole practice will be fired again. =6. Missfires.=--In the event of missfires, extra rounds will be allowed equal to the number of missfires in the practice concerned, a proportionate part of the time allowed for the whole practice being given for each extra round. =7. Extra Time.=--Whenever extra time is allowed for a timed practice, a report giving the reason, and stating whether the jamb or missfire was due to the rifle or to the ammunition, will be rendered to Command Headquarters. Section =58=.--General Rules for Range Practices.[27] =1.= Range practices, unless otherwise ordered, will be fired in drill order. Range practices should be fired, as far as possible, in favourable weather. It is of the utmost importance that recruits’ firing should not take place in cold and unsuitable weather. =2. Order of Practices.=--Range practices should as a rule be fired in the order in which they appear in the tables, but brigade commanders may vary the order at their discretion. When deliberate and rapid practices for classification are fired at the same distance, each man may fire the rapid practice immediately after the deliberate practice. =3.= In the case of ranges of less than full extent, general officers commanding-in-chief may frame special instructions, make proportionate changes in the size of targets, and vary the points for classification.