Future Pronghorn Antelope/Elk/Mule deer hunt
One day I wish to go out west (preferably Wyoming) and hunt the above game. The catcher is I want to use my 870 12 gauge with smoothbore slugs at least for the antelope and mule deer. The only other gun I can use is a 243 winchester, but I prefer to use the shotgun. My question is "does any one have any experience hunting Pronghorn Antelope, Mule deer, or Elk with a 12 gauge shotgun?" P.S. I know the 12 gauge isn't the best for an elk I just want everyone's opinion on the subject. Thank in advance.