They open Sat. I had the same problem you did in regards to getting ahold of them. I called probably 5 times a day the last few days and I only got ahold of them yesterday. I plan on going Mon when its not going to be as crowded, I figured Sat its going to be packed.
I would assume it would be, why open it back up and not open the pistol range. The only way to find out is to head over there sometime tomorrow. Im afraid it's going to be jam packed.