Cyclone,

Thanks for getting that info. Hopefully your analysis is reasonably accurate. If so, it appears that you have pretty much verified that it is impossible for a deer to move out of the way at 10 yards of a well aimed arrow going fast.

I have a question though, that I don't know the answer to. I've never personally measured this, so anyone who has please respond. I hear that the average height of a whitetail is 36" at the shoulder. I've also heard the figure of 18" for the depth of the body. Now, to fall 18" would require the deer to hit the ground with the chest when bolting. I've witnessed deer going down quite low, but I don't think I've ever seen one get any closer than 6" of the ground when bolting (judging this by the videos I've watched. What is everyone elses take on this?

One more comment. My opinion is that at 10 yards, a miss of 1.8" is going to result in a kill everytime from someone reasonably accurate. The 3.4" drop with the slower arrow will require aiming towards the bottom of the kill to assure a kill every time.