"There is little to no noticeable difference in the wound tracks between premium line law Auto enforcement projectiles from 9mm Luger through the .45 Auto."

Not sure this is correct in terms of 9mm vs .45 ACP. While depth of penetration, bullet expansion success, and weight retention, may be equal, the .45 expands to a significantly larger diameter, and produces permanent wound cavities that are significantly more voluminous, which just has to affect fight stopping performance, even if just by increasing the probability of destroying vitals per round.