The great state of Tennesse's legislature recently gave the nod on all centerfire rounds for big game. I personally believe that was a mistake. I have almost 40 years hunting experience and have seen many things. The first trophy whitetail I took had what looked like a 30 caliber jacket in his hind quarter. It had been there long enough that no lead remained. Having said that bullet placement is the most important part of havesting wild game. However I believe that the 22 hornet and 223 etc are inadequate for whitetail, as is the 357 magnum. The 410 slug is also a weak choice. I believe caliber restrictions should be imposed and based on scientific information, not personal opinion or even general concensous. Certain energy at range numbers come to mind...