I really am concerned about this. If a Firearms Officer passes a given piece of land for .22lr does that mean that no-one can ever use that land to shoot a "bigger" calibre? I may be wrong on this, but I thought that if the land was passed for, say, .22, all that means is that it is acceptable to use firearms up to that calibre. If you wish to use a bigger calibre you should either apply for the calibre or show that you have an open certificate.
thats what 1 feo told me, but its boll ox.