The railgun's 200 to 250 nautical-mile range will allow Navy ships to strike deep in enemy territory while staying out of reach of hostile forces.
Mortars could soon become a lot less effective.
Progress for laser mortar defences.
Could provide squad or individual defence. They would also have potential effect versus small UAVs like those that are MEMS/NEMS based.
Which accompanies existing base / encampment mortar defences.
Those without good tech will be at more and more of a disadvantage.