As a secondary probably viable depending on what you're carrying and how you run your setup. For indoor totally viable.
As a primary for outdoors probably not, at minimum outdoors I'd play with 330 FPS (and probably run .28's to lower that even further). With paintball those guys run 300 FPS so I don't see why my BB's need to go that much faster (unless it's to pack a punch so people know they've been hit or for people who don't call their hits). Typically though I run anywhere between 380-410 FPS.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE