Hi, here is my last posting today, a dwg. titled: 'Cartridge Q.F. 2pdr 75 cal. gun with H.E. shell, fuzed No.255'. The shell is titled ' HE S/L 2pdr. HV and looks like a Bofors style proj. A mention is made to developing a HE shell for the Pipsqueak gun, whether this has anything to do with the project is unknown. Cheers, Ron.