While on the subject of the 25 Pdr. The HE KILL value seems strangely low at 7.
The 25 Pdr (87.6mm) fired a 25 pound shell. Most medium mortars fire a 8 pound shell, and have a KILL value of 11!
Though looking at the values of a few guns, I would be tempted to put all the medium mortars down to about 7 or 8, and the 25 Pdr up to 9 or 10.
Just an observation...
Cross