Permits authorising possession6.17 Section 7 of the 1968 Act enables a chief officer of police to issue to a person a permitauthorising them to possess a firearm or ammunition to which section 1 of the 1968 Actapplies, or a shotgun, in any special case where it may not be necessary or desirable toissue a certificate. For example, a permit should in normal circumstances be issued toauthorise the temporary possession by a relative or the executor of a deceased person, orthe receiver of a bankrupt’s estate, of firearms or ammunition forming part of the propertyof the deceased person or bankrupt. A permit may not be issued to authorise the purchaseor acquisition of firearms or ammunition (but see section 5(1) of the 1988 Act and chapter15). If it does not specify possession only, it will be assumed by default that the permitallows use. A permit should be issued if a certificate holder’s firearm certificate or shotguncertificate has expired and they have made reasonable efforts to renew in good time.
Nothing in there t help. However, if we go to the '68 Act it states;
7.-(1) A person who has obtained from the chief officer of Police permit.police for the area in which he resides a permit for the purposein the prescribed form may, without holding a certificate underthis Act, have in his possession a firearm and ammunition inaccordance with the terms of the permit.(2) It is an offence for a person to make any statementwhich he knows to be false for the purpose of procuring,whether for himself or for another person, the grant of a permitunder this section.8.-(1) A person carrying on the business of a firearms.
This sentence perhaps holds the key, " in accordance with the terms of the permit".
So, the S7 permit authorises the holding of firearms and ammunition in this manner and it does not mention time. I am not aware of anywhere else in the Acts a S7 permit is constrained by law to a 'statutory' time period. So if you have an S7 without time limits then it can in theory endure for ever or for the whole of the period when you have no other legal means of holding firearms ?
That said s7 deosnt mention expanding ammo and we know its an offence to hold that under a S7 permit - time someone simplified the rules !!!???!!!