That's a pretty good haul there! Why is the site shutting down, construction zone or something similar? Shame all the remaining relics will rot away...
The site was bought by a preservation trust. I would be so sad if they were going to open to public but alas it will remain closed to the public eye forever. Here's a nice bullet in wood I haven't cracked open yet.
Great finds buddy! Hate that the site is closing for you. Bullet in wood is cool, and I really like the artillery finds. I've never found anything artillery related -- high on my bucket list