Hi Dave,
No info ,but a nice find.
Maybe a 30/20 variation , case looks to be DEFA style?
cheers
Bob
Hi Dave I checked my case "same head stamp",think it should be called a 20x126B french exp..
Standard 20mm proj a snug fit.
FRANK
Thanks for the feedback guys.
Regarding the headstamp, that ones really confused me too. I attach a couple of photos of the Aden 20 x 135 (shown to right in all photographs) next to this 20.5 x 126. The odd thing is the 20mm Aden projectile doesn't fit into the 20.5 French one!! The Aden of course has to accommodate the Aden driving band also but the base of the projectile doesn't even fit either.............
Dave.