Hi Mark, sorry that was unfair.
The cases arent common ...ive seen about 10 or so..but the projectiles are alot harder to find, but they do crop up.
You're most likely to find a SMK or HE 95mm with HEAT being alot harder to find....there are others, like base ejecting SMK, CHEM etc. Im sure someone has more info.
Having said that, they're alot more common still than its 3in CS cousin....again the cases are obtainable, but less common than the 95mm but the projectiles....well I think Ive only ever seen 2, and another in a photo.
and if anyone out there has either, id happily swap for large wodges of cash ;-)
Rich