Originally Posted by no username
fps determines what type of BB you use, I was just wondering if I could use 0.25g BBs, I am not sure they will fly on the same level if they are fired at 320fps.
Yes, Shoot at least .25s.
My G&G has a downgraded spring, as i use it for CQB occasionally so it shoots like 330. I still use it for outdoors with .25s and my range is surprisingly good.