Tain Airfield is long closed. My post also said: Range is often active." When flying, I always check the NOTAMs for weekdays when it is inactive (seldom) and weekends when it is active (a few times per decade). I have found the Range radio very helpful during active hours, but with an hour or so with nothing booked.
But Tain Airfield is not as available for your Airbus/Boeing as Gimli now.