I have never went hunting before and I would like to start next season. I am torn between a shotgun and a rifle (was leaning towards a rifle but now I think I want a shotgun), I can't make up my mind and I can't afford eather right now so that atleast helps. Sorta. I am just wondering, on shotguns, how do the calibers go? I meen what is the most powerfull and least powerfull? I was thinking of getting (if I got a shotgun) a Remington 870. Does that only come in 12 gauge? Is 12 gauge enough to drop a whitetail deer with proper shot placement? If I saw correctly Remington 870's are only a little under or over $400, is that correct?