Placement has 0% repeatability here.... Almost, let me clarify my position. If it's not an immediate kill shot, chances of a bullet following the same exact path as it enters the body are very much slim to none. I doubt you'd be able to say "this guy died of a 22 that entered here and ricochet to here, so it'll do that every time...." Where as at least with a larger caliber, a hit is a hit, and the larger the wound cavity, more guarantee of damage, every time.
Just my food for thought.