I've been digging at this very thing for many, many hours with all kinds of editors even hex editors, trying to alter the stats of my Alpha Railgun mod and to make a realistically powered .50 rifle. After this much digging and countless fails yet, I've come up with a couple conclusions. One, I think the other stats (like accuracy, value, weight, rate, ect) are possibly buried in the hex or somewhere I can't seem to find. (I thought I had found Accuracy buried in the hex code once and altered it, but it didn't change anything and hilariously disabled the automatic fire function lol.) Two, the way they have the weapons and mods set up is both awesome and frustrating, because many values change according to mods. Thus, and as you can see in FO4Edit, each weapon has different mods that configure differently and add or subtract values. So, the weapon mods hold some of this data we want to edit also, but so far in my digging, is in a format that doesn't make sense to any editor I've thrown at it lol.