Question: is 250 fps good for a bow?
Answer: Anything in the 250-300fps range is perfect. I believe, for most archers) if you are faster than 300fps you could trade some speed for a heavier(more efficient and forgiving) arrow. Slower than 250fps go to lighter arrow for a better trajectory. on a deer you would miss the target at 250, while you are a low 8 at 300.