Its £40 an hour for the full bore range. I just called and spoke to Jo who deals with bookings. There is a massive wood butt stop that you can put any target on, I like to use my own but they will provide card targets.
The metal deer rig is a separate thing. You would have to ask about it, I didnt use it. They have 50m and 25m ranges to but I only use the full bore 100.
You are basically firing down a train tunnel, setup as a ballistic test facility. They provide Benchs to shoot from, various rests, bags and a spotting scope.