Happened to me on quite a few legendaries, like the Logan. I assume any legendary will be awesome, since they're EXTREMELY rare and hard to get. That gun was complete trash. Then I got the Flakker shotgun -_-. Way too situational to be good. I sold it right away. --- I have Dysarthria. It's a Speech problem. Your question is answered now.
Some weapons are better if you shoot the ground below enemies.
This is FPS 101 here for anybody who plays more interesting shooters. ;) FPS 102: Some weapons are even better if you shoot the ground below yourself and go flying! --- If you think my name is silly, you should call me either Rob or LaughingThesaurus. No need for being strictly formal on a message board, right?