First of all, many thanks to Williehuntz for his realistic explosions which forms the basis of this mod. My bumbling use of the PFM requires some refinement before I'll attempt a mod from first principles.
Spherical Case Shot Mod
It had bothered me for a while that the spherical case in Empire was assigned to cannon and usually flew over the targets' heads. What bothered me more, however, was that this useful weapon disappeared entirely in Napoleon.
This mod changes that by replacing the standard explosive shot of howitzers with a shrapnel shot that, by virtue of the downward trajectory of a howitzer shell, drops a lethal cone of shot downwards onto its target.
This mod is of the "movie" type, so just unzip, drop it into the data folder and away you go.
Any feedback is greatly appreciated.