Originally Posted by Qlong
Field limits are 350FPS for 0.20g BBs only. You need to change your spring, not use heavier BBs.
... take notice of this.
Field limits are calculated with .20g bbs. If you present yourself at the chrono's with a hot gun that shoot 350fps (indoors)or 400fps (outdoors) with anything other than .20g bbs; you won't be allowed to play.