(ii) =Use of Boiling Water.=--An effective means of cleaning the bore, whether firing has taken place or not, is found in the use of boiling water. Before boiling water is used superficial fouling and grease should be removed. About 5 or 6 pints should be poured through the bore from the breech, using a _funnel to prevent its entering the body or magazine_. The rifle should then be dried thoroughly and the bore oiled. Not only does the boiling water remove the fouling, but the expansion of the metal due to the heat of the water loosens any rust there may be, and facilitates its removal. =7. Cleaning the Action and Exterior=--(i) =Bolt=.--Thoroughly clean the bolt, paying particular attention to the face of the bolt-head, the striker point, and the extractor. _If the bolt requires cleaning inside it will be taken to the armourer._ (ii) =Magazine.=--See that the recess for the extractor spring is clear of dirt. Take out the magazine and wipe the inside of the body and the entrance to the chamber with an oily rag. Remove all dirt from the slots in the charger guide and from the extractor recess in the front of the body. Take out the magazine platform if required, and clean the inside of the magazine with a dry rag. (iii) =Exterior.=--Wipe the exterior of the rifle with an oily rag, seeing that the =U= of the backsight, the hole in the aperture-sight, the gas escape holes, and, in the short rifle, the rack on the side of the leaf, are free from dirt. Remove any fouling which has collected on the bayonet boss on the nose-cap. _If allowed to accumulate, this may cause difficulty in fixing the bayonet._ (iv) =Caution.=--The instructions regarding the use of an oily rag for cleaning the bolts and bodies will not apply _in dusty countries, where all parts of the action will be kept dry and clean_. =8. Cleaning ·22-inch Rifles and Aiming-Tubes.=--(i) As a foul rifle shoots very inaccurately it is of the utmost importance, from considerations of safety, that the barrel should be wiped out frequently during use. (ii) =Rod and Brush.=--The rod and brush should be inserted from the _breech end_. Under no circumstances should they be inserted from the muzzle, as the friction of the rod is liable to enlarge the bore and make the muzzle bell-mouthed, thus causing inaccuracy. Section =5=.--Instructions for Care of Arms and Ammunition. =1. Care of Arms.=--(i) When the rifle is _not in use_, the leaf and slide of the backsight should be lowered to avoid the risk of damage from a blow or fall. _No non-commissioned officer or soldier is permitted to take to pieces any portion of the action, except as prescribed for cleaning, nor is he allowed to loosen or tighten any of the screws, unless authorized to do so by his company commander._