Muse isn't going to make a special ammo for it when they're already going to have it on that many different ammo types.
I didn't know you were an employee of Muse.
Jokes aside, "probably" is not 100%, whatever is in devapp can still change or be entirely removed.
I believe it would help the gunner a little to have an ammo type that specifically increases gun arcs, helping the gunner be more useful on more ships with specific loadouts, while engineers profit more from ammo types that increase dps or somesuch.