Cliff hanger (literally)

I don’t know if this qualifies as ammo but it flies and was used in WWII.

I don’t know either, but I would like to have the BAR sitting behind it!

What launched those critters? That would certainly count.

The teenager manning this display told me that it was called J1 something and was made for D-day after which most of them were scrapped for metal. According to him it was powered by a rocket, see the white ersatz insert connected to projectile.

They were used at Point du Hoc and were launched from the landing craft to allow the rangers to scale the cliffs.