how it change ?

what changes it ?

Could you rephrase your question in clean english so I can understand what you're asking?

He means what changes does your mod do to artillery compared to not having your mod downloaded. hope that makes sense.

E.G.
For example if the base artillery has 56 range on auto and 156 on manual. Does your mod make the ranges bigger??

Something like that.

Suggestion on your home page state what changes your mods to the vanilla artillery

This mod makes stationary artillery ranges base range longer than artillery wagon ranges.

Not sure how much simpler a description I can make?

Default artillery base range for both stationary and wagon is 7 chunks. This mod makes stationary artillery turret base range 12 chunks.