[Juha]

Hello Tony.
I’m not too sure on that the 6” shells usually buried themselves deep before exploding. The main purpose of British naval 6” HE shell was that of shore bombardment, CPBC was the shell normally used in naval engagements. It would surprise me if the RN was incapable to design fuse-shell combination for shore bombardment which allowed the shell burst before it buried itself too deep because all armies I’m aware of succeeded doing that.

Regards
Juha