Mounting an ultra dense capacitator to power magnetic accelerators in the wall of the shell, this is in fact a single shot disposable gauss weapon and not really ammunition at all. The shotgun into which the shell is loaded is merely there to provide a more stable and ergonomic firing platform.
8c per shell.
Game Use:
As silencer, additional -2 PEN, -3 DAM, and -4 AD compared to standard shell.