Ok, here are the issues and some of my recommendations.
Missing - A general topic sentence under the title header
Sort of - In the proper format/template headings are different but has the necessary sections.
Missing the -The in-character year of creation/manufacture
Propulsion Sabot: - This is rather overkill. The whole principle of a Rail gun is to use the gun to take care of firing the projectile. Adding thrusters and the FTL feature are just too much.
each round can be equipped with a FTL propulsion sabot,
There are no FTL weapons in the SARP, other than FTL torpedoes. Torpedoes can use FTL to enter an area but their actual attack runs can only be at STL speeds.
Recommend just removing the velocity. You have already stated the range of the weapon leave that. Trying to get a projectile that large to those kinds of speeds in roughly 98 feet, is not really scientifically feasible, let alone the recoil.
Starship Combat Guide