400 is the LIMIT for AEG's outdoors in manitoba, it's not a goal.
And FPS really only changes how fast your bb gets to your target, I've seen 350fps guns outrange 400fps guns. My UMP only shot 280 and it had incredible range outdoors.
300-350fps is a good place to be if your just starting outdoors. And 380 is really as high as you need to go!
And remember, the higher your gun shoots, the higher it's chances of breaking