Recently added this fantastic 40mm Hughes-Lockless display round to my collection and I am looking for some further information on it.
I am familiar with the more typical rifle caliber Hughes-Lockless cartridge but did not know this massive 40mm variant existed.
The body is made out of a hard clear plastic that has yellowed, marked “HUGHES U.S.A.F. 40MM LOCKLESS” on both sides. It can also be disassembled by sliding the 2 side panels down and out of the dovetail joint. The 2 halves can them be pulled apart revealing 2 black foam inserts to represent the 2 main powder charges, with the smaller primer charge directly below the projectile made from extruded plastic. No primer as it was probably lost long ago.
The projectile seems to be a WW2 era 40mm HE-T projectile, painted red with a dummy fuze plug and a solid steel plug screwed into the bottom of the projectile. The very nose is marked “DNP-5”, drive band marked “MK2 1-1 LOT1416”. Tracer plug marked “434055C” with a nice Hughes “H” stamp.
Compared with a 20x102mm. Lucan, it’s quite the brick! Any further information would be greatly appreciated!