Arrow weight (in grains) X Feet Per Second % 225,200 = momentum

Dr. Ashton' s study showed that the chance of a killing shot when encountering bone increased 80% when momentum was at .57 or above...

Of course, this was for very large african game... how much is the minimum to yield similar results on whitetails is the million dollar question.

Art, Doesn' t Holt' s argument prove that a heavier arrow is more preferable to a lighter arrow, as the heavier one will always have a higher level of KE for a given bow?