It is in fact quite enough to cause the premature explosion of a shell in the gun. 6 and 3 pdr. In the case of 6 and 3 pdr. Q.F. guns, the fittings should be thoroughly cleaned after firing by dismounting the mechanism and washing each part with warm fresh-water soapsuds. When thoroughly dry the parts should be oiled.
Nothing is to be kept in the bores of guns when unloaded, except the tampeon.
Extemporised tampeons made on board are not to be used. In certain cases 6 and 3 pdr. This is attributable to the use of these tampeons, which, being usually covered with fearnought, absorb moisture and thus cause the bores to corrode. Guns used for saluting. Guns for Mercantile Auxiliaries and in Reserve.