I'm just studying projectiles form and wonder on how just gravity parameter works on them. It looks like it is used just one time only (fatman if i can remeber) and there is anywere a clue how to eventually use it.
Is anyone able to explain me the rules? It uses x.xx format so i looks like you can add 999,99 and more (or less), but what happened then?

Also it looks like all projectiles use range 10000,00. What are those game's units? Pixels? Ant fire projectiles use fire on 640 units so in game it might be (on look) about 10-15 metres. Am I right?

The gravity just draws the projectile in an arc, IE back to earth, so just play with it and see what different values do.

The Drone cannons from MZ use gravity as well.

Projectile range is how far it goes before disappearing. it prevents projectiles from going on forever and eventually crashing the game.

Yea the gravity setting simply causes projectiles to arc. The higher the number the move severe the arc. Anything over about 5-10 is going to make it fall straight down out of the gun. But the fatman, and anything else that arcs uses it. But all bullets use 0 because they do not arc.

Well, that's some kind of information, thanx. However it is not causing arcing, but simply falling down within the distance, i believe. It can be used to simulate some ballistics. There is great difference between pistol effective range and the rifle. The game does not realize it at all.
For example there can be difference between 2500 range + 0.05 gravity for pistol and 7000 +0,15 for assault rifle.
Yes, it could be better to play gravity (or any equivalent) only after some distance but that gravity is still better than nothing.

Gravity would have virtually no effect on a bullet for the equivalent range you are shooing in Fallout. Since you can only see about 2 cells away, the projectile would be long out of viewable range begore any kind of gravity would actually become noticeable.

2 cells away? What distance/range it is in game's units?

PS. most pIstols in real are about 30-50 m range of efectiveness. SMGs about 100-150, rifles 400-1000. If you set range 2000 / 4000 / 10000 then you are about "reality". But what is that range according to those cells...?

As scope wobble is uncontrollable (?) so that gravity still remains interesting.

The exterior world cells are 1024x1024 units. 128 units is about 6 ft according to the wiki. So its about a 48x48 ft square, or 16 meters. So your max fighting distance never exceeds about 35m, therefor gravity would not make a difference in real life, so they left it out ingame for bullets.