The TKO numbers are certainly no more of a Farse than your idea that velocity alone is the kill all answer. It is not. Its only a small part of the equation. The TKO is made up of bullet weight, bullet size and velocity. That is a much more firm base to eveluate killing or knock down power. If anyone uses the 204 in the sataes that I hunt, you are breaking the law and thats all there is to that. If its legal where you hunt and you don't have a better gun for deer then I quess you can go for it. I can't say strong enough ( as was said above) Wildlife was not put here for us to experiment on minumum ways to kill them. 22 centerfires 222 and bigger are allowed where I hunt. If I had my way, 25 caliber would be the minimum. However the guys using the 22 centerfires in our state are at least legal.