Increase of maximum/minimum firing to be around the same as Rocket Turrets to provide an alternative, as a whole the more expensive and tedious process of making cannon shells would not fully replace the rockets turrets on Space Platforms/Gleba anyways

Hi
Both turrets already have a setting to adjust the firing range.

As for the maximum range of the cannon turret, I am unfortunately limited by the projectile’s range. If I increase the firing range of the turret, the turret will fire at enemies that are outside the shell’s range, resulting in a waste of ammunition. Just like now, if you're in a tank and you fire at enemies that are too far away, the shell will travel a certain distance before exploding in mid-air.

At present, cannon turret already have the advantage of being able to hit multiple asteroids thanks to their piercing power.
(Need the CannonShellAstroidFix mod enabled)