Other factors will be the F.O.C. of the arrow, how well the bow is tuned, size and amount of helical on fletching, and whether you are using fingers or a release.

I don' t think anyone can give you a number that will apply in all situations. In fact , the number is probably at least slightly different for everyone. I would also guess that given the perfect setup and equipment, the maximum speed is probably a lot faster than what we' re shooting now.