i was shooting thru the chrono w/ some 520 gr arrows at 240fps from point blank. my buddy was shooting 257fps w/ a 377 gr arrow at point blank. from 23 yards i was shooting 232 fps, he was shooting 243 fps. i lost 8, he lost 14fps. is this a percentage speed loss - or do heavier tipped (200 gr) and spined correctly arrows slow down - well, slower.

i didn't trust him to shoot thru the chrono from any further or we would have done that and i'd have some #'s.