Tac1 -
WELCOME to the board and THANKS for the public invitation.
I'm in Southern Virginia and won't be able to make it, but I appreciate the offer!
Since this is going to be such a visible affair, I strongly suggest reviewing the safety procedures of both the American Artillery Association and the North-South Skirmish Association. They were developed to prevent unwanted explosions at the wrong time (wonder why?) and are very well thought through. Might be a good idea to pratice a bit too.
Take a quick look as well at local laws.
Again, thanks and we'd like to see some pictures of what y'all shoot!