My favorite caliber for deer, like most people' s I' m sure, is 30cal, what cartridge, well that' s a whole new can of worms!

I' d imagine my favorite cartridge will always be the .30-06 sprng in rifles, although I' m a huge fan of .44mag and .45-70' s, but if I had to choose only one, I' d go with the .30-06