Boundary signs were what the MoD relied on for years. (Many decades I'd think as the present ranges date from Victoria's reign.) Modern safety management doesn't allow Darwinian solutions unfortunately, and an independent safety inspection was taking place when shooting had to be shut down thanks to a trespasser. The infuriating thing was that the ranges adjoin an area of Strensall Common that is used as a training area and public access and car parking are allowed on it under 'good neighbourship' arrangements. The ranges themselves were open to walkers whenever shooting was shut down and the red butts flags removed, and guaranteed after 16.30 daily. (A collection of up to a dozen locals would build up at weekends in the car park and pass the no entry signs at precisely 16.30 into the ranges even if the wardens had yet to remove the flags!)
It was a tiny number of (all male) locals who insisted on their 'rights'. Since the fence was installed, the enclosed area has been barred to non-users 24/7 365 days a year including days that see the ranges closed such as Christmas day - no exemptions given. The village parish council was furious - not with the Army and Landmark, but the stubborn, selfish few who brought about complete closure,
