30x100mm Wecom 1968 round

This is my foray into an unknown to me land of large aviation ammo, so don’t be shy to correct me. I called it 30x100mm Wecom (Weapons Command) because of the dimentions and 1968 date. I don’t know if the projectile is original (or just fits), all it says is “441” in hand written vibrating engraver. So, am I right? Here is a nice Italian website dealing with XM140 30mm gun and Cheyenne helicopter sobchak.wordpress.com/2010/01/05 … ubsystems/

Your projectile looks like it is correct. I have two variations and both projectiles have the same profile and driving band configuration:


The steel projectile body is probably one of the HEDP (High Explosive Dual Purpose) design types tried by the Army during 30mm WECOM R&D. See a photo of sectioned examples here (bottom of the page) bocn.co.uk/vbforum/threads/4 … away/page2.