I was just upgrading one of my weapons and started wondering... does the attack stat on weapons actually do anything? We've all heard how it's supposed to help you attack higher level enemies but has anyone actually tested it? I mean Iron Banner where stats matter turned out to be BS. If I upgrade my raid rocket launcher from 257 to 267 or whatever, does it actually do anything more on raid enemies?
Your damage to enemies that are of lower level than you is capped at a fixed value. Once you are doing the max allowed damage, leveling your weapon further (or yourself for that matter) won't grant your any damage bonus any more against lower level enemies.