8mm Military Combat Films~30mm Projectile

Here are several items I found while picking today. These are two film canisters, 8mm, I believe, however, I could be wrong on the film size. The reels themselves measure 10-1/2” across and the film takes up almost the entire reel. As you can see from the pics, one is titled “The Marine Corps And Close Air Support, MH-7906, Unclassified”, and the other reads “The Marine Rifle Platoon In Offensive Combat, MH-8081-B.”
They are both from The United States Navy, Bureau of Aeronautics. I have not had time to research these yet, but thought I would post them anyway. Also, I currently have no way to view them, consequently, I have no way of dating them.
The projectile says ZEL-2-17 55 30mm T328. I am not an expert on military ordinance, but it looks real, nice paperweight if nothing else.
Enjoy