RE: in your opinion, the best deer hunting caliber...
Most people would say the 30 caliber since it makes up so many popular guns. But i prefer the 28 caliber, the long slender bullet gives more penetration, and flies better. I have recovered bullets from deer from both 30 and 28 calibers and there is more bullet left behind the mushroom on a 28 caliber. That means more bullet to drive through. The 30 calibers are usually short and fat which mushrooms into a ball and slows down quick. Just my opinion, so you decide for yourself,