????? you'll have to explain that one mate. As far as I'm concerned, you're limited to 300fps muzzle velocity, so you can't make it go any faster/fly further than that.
Limited by the rules of the game I mean, you can't intentionaly go out with a higher muzzle velocity, so nothing else is really going to affect range (excepting back spin etc... but that's not for the newbies forum).
if u have a good enough reg you can have near on 300fps... i know some one with an angel that has his fps at 298 which is legal and the spikes have been checked for hundreds of shots and hasnt gone over 300