After looking on the forums for a suitable long range weapon mod, I realized there weren't that many. I stumbled across this one after looking through your Galacticraft mod. At first when I took a cursory glance through it, I was like "Huh cool." And then I came back later after wondering "Wait, what makes these customizable?" (I didn't open the spoilers). After opening the spoilers I was like "HOLY JEEZ!!!" And now am very excited for it to update so it can fill the void in my world, lol.
What this really reminds me of, is like the mod "Tinker's Construct" but with ranged weaponry, which is a very good thing, as the world needs more customization!