Consideration should be given to restricting the availability of self-loading pistols and revolvers of any calibre which are held by individuals for use in target shooting o preferably, by their disablement, while they are not in use, by either (i) the removal of the slide assembly/cylinder, which is to be kept securely on the premises of an approved club of which the owner is a member or by a club official; or (ii) the fitting of a locked barrel block by a club official (para 9.112); o or, if such a system is not adopted, by the banning of the possession of such handguns by individual owners (para 9.113).