Thanks to a comment in a post from Tony Williams, I took a relook at my 40MM collection and noticed a difference in the cases of the 40 X 364 and 311R. Considering the lack of a base groove on the 364, I assume these were not considered for loading in clips, to be loaded individually. If anybody has a fuse cap for the 364, please PM or email me. Inert Filled projectile has an ID of 28.73MM/1.1" , TPI 24. Is there a different option for projectiles between the 311R and 364?
This is a spent 37MM projectile. Fuze appears to be a solid chunk of a not too hard metal. Appears aluminum in color, but a little tougher. Spent tracer crud is apparent in the base in a hole about 10mm in diameter. My guess is it’s a 37 X 223R loading. Anybody know?