If you have a large magnum that you use for larger game, and you use it for whitetails on the side I can understand, because, like Redhawk1 said, it is sighted in. Then again, like SHOOTALL mentioned, range can be a factor. Anyone that has a "gun that will knocked them over when hit anywhere in the body", either has no experience or is just making conversation. That is a hunter's education issue, not a caliber-bullet issue. In a handgun, I haven't seen anything over 110grains, regardless of bullet style, stay in a white-tail. The 158 gr .357 even broke the leg as it was exiting the opposite side. And that was not the "deep penetrating" style, actually a self-defense design, the Remington 158gr Semi-jacketed HP, most of the bullet above the cannelure is soft swaged lead. And as far as the "law" is concerned about what you use to harvest your game, how many states have weapon range limits? Is there a law saying you can't shoot at a deer with a .454 at 1,200 yards? Do you need the law to tell you that is obsurd? Muzzle-loader distance? Or, shotgun distances? So why should someone regulate a caliber or ft-lb limit? I'll take a .38 at 20 yds than a .454 at 75, because I know I have steaks and sausage coming.
