Ok so, it says that the railgun range is 30 blocks, and i've got 4 range upgrades in it, and it won't fire at something from 16 blocks away (used tape measure on absolute measurement).
it's full of the slugs, and it has max energy. i even removed the conceal upgrade thinking it may have been that. it also has a damage upgrade and 4 fire rate upgrades. please help!

never mind. i just worked out that the y setting fixed it. i did not know what that was and i couldn't find any info about it