sigh

KE is not a good way to measure the power of penetration in the setup you're using.

KE is a marketing scheme and little more.

Momentum is what you're looking for - not KE




Think of it this way - a hypothetic 80 grain arrow will have a LOT more KE than a 450 grain arrow. Which do you think will punch through the shoulderblade of a deer?

KE is a 2X multiplier of SPEED - KE is

The kinetic energy of an object is the energy which it possesses due to its motion.[1] It is defined as the work needed to accelerate a body of a given mass from rest to its current velocity


sorry - KE is a lie as it applies to archery