ADCAP is a far cry from a G7 or mk 14.
Thank you all, especially the written reports give valuable info. It is invaluable to turn a "sim" into a sim.
In the game, radius is set to 3m (10ft) minimum and 7m (23ft) maximum. Max damage is applied to anything within 3m of impact, and damage drops off to a max radius of 7m.
I'd say the max radius needs to be extended to "simulate" damage beyond the impact zone (pressure wave entering hull through hole, shards of metal send flying, vibrations damaging engine and shafts, etc).