Let's not get any misconceptions going here- it will save a lot of actual "in the field" grief...
First off, a pellet is a pi$$ poor projectile to hunt with- especially at the lower end velocities alluded to at the start of the list. If you aren't capable of head shots at those low velocities, don't shoot. Those low velocity numbers in .177 are extremely marginal on live game- anything other than a head shot will result in a wounded animal on the run or fly.
I think we need to see more on terminal ballistics- how various projectiles behave on impact. Most pellets I've seen at low to mid range velocities are over-penetrators- they simply pass through the game without expanding... a precise hit in the vitals, or head becomes the absolute minimum requirement.
Your numbers make more sense to me in the .30 cal/9mm range and up- they equal what is seen from most powder burning handguns.
Regards,
Doc Sharptail