Why don't I shoot them now?
Because I'm producing WAYYYYYYYyyyyyyyyyyyyyyyyyyyyyyyy too little KE to shoot them (as are most people, in my opinion).
Awww, come on guys "it's like throwing and axe through and animal." Concerns about kinetic energy are for wussy men with small diameter heads. LOL!!
On a serious note you are of course right. A 2 inch diameter head of any kind takes some serious KE to consisitently push through deer. Something that sadly far too few people seem to care or educate themselves about.