Hi...
THIS WAS AN EYE OPENER...!!
I recently read...on a hunting and fishing site...about flint and/or obsidian "bird" arrowheads...small enough to barely cover the nail on your index finger. At least it was thought to be an arrowhead for birds...because of their tiny size.
Well, it was decided to experiment with them. A fresh-killed deer was the target. "Bird" arrowheads were affixed to reed arrows, and fired from a 'mere' forty pound pull bow into the deer carcass from a distance of thirty feet.
The arrows not only penetrated the deer, but extended through the other side of the deer...!! This was tried numerous times, all with the same results.
Evidently, small arrowheads were used on big game because they were easier to make, lighter to carry, and could be used with a much lighter bow...AND killed big game.
I guess that you never know until you try.
Everbody knows something.