Ok....how about a different angle of thought
Anything under 300 you kill the animal
Up or down only changes the hunters perspective of how far.....it doesn't change physics
Not true. Uphill and downhill shooting are not about correcting for any sort of optical illusion. The physics of the bullet dropping has a changing variable with angle relative to plumb.
Think of gravity as a constantly blowing wind going straight down. All of our calculations assume this factor at 90 degrees in trajectory charts. When you start shooting more “into the wind”, or uphill, gravity will have less impact on how far it pushes the projectile off it’s original axis. Shooting squirrels high in a tree with a 22 will illustrate this on a smaller scale.