2 pounder practice

[pzgr40]

Does this projectile belong to this 2 pounder Pom pom shellcase? Or does it belong to the longer AT gun shellcase?
It is stamped in with the following markings
Unreadable and HV
BSP
T & O
12/42
Lot 206

 

[tankbarrell]

Short case, 2 pr No 1

 

[pzgr40]

So, this is the correct shellcase for this projectile.

 

[MINENAZ16]

I'm not an expert in cases, HV (high velocity) is ok for this shell.
So the case should be 40x158 (2Pr No1).