Sorry for the delay but a one day 'seed is scheduled to held on some private land in Stamford Vt this October 24th, a Saturday. It is a 25M event, listed as for rimfire rifles only.
There is space for one or two smaller campers and tents. Range space is limited to 10 shooters.
https://appleseedinfo.org/search-states-location.php?locationid=708&id_event=4030
Hope you don't have to fight the leaf peepers to get there!