I don't see why people are all upset at the thought of smaller calibers being used.

In the end, a larger caliber just gives you a little more room for error within the kill zone. Let's be realistic here, if you can make a kill shot with a 308, you can make a kill shot with a 223.

Deer hunting is more about knowing your gun, and the limitations you have with it over anything else. If overall power was all that important, then bow hunters would never take any large game...