I have gone a few times.
It is a lot of fun with some good regular shooting and then a timed walk up and shoot doublegun competition.
Most of the attendees bring their big guns and are happy to let others shoot them. I make it a point to bring along some rook rifles and whatever else I am working up loads for as well. It is fun to see all the big gun guys get giddy over nice rook rifles

I will be there this year so if anybody here can make it, I will bring whatever gun of mine they want to shoot.