John, there were a couple of times we made a side stop at the NMLRA's National Shoot when on vacation, as we headed east...
I didn't compete, but I did watch some of those Offhand Matches, and visited the Vendors, and Museum, and eat some lunch in what I assume was the club house... Best liver and onions I ever et' was at that place...
Sadly, they lost me when they went to the modern Inline Muzzleloaders... Just couldn't go that route, and still can't...
However, it was (and probably will continue to be) the largest gathering of Vendors a person will ever see in one place.