Ill be shooting from probobly 5-10 yards, so not far at all. I think Ill use my .204, its a great little gun, except its a bolt action. And its hard to jack one in, watch the animal thats at this point just pissed(ansd istrying to eat you), watch the dogs, and look through the scope all at the same time.lol I mean its hard to do all those things at once. So the 12 might not be to bad. If I use the 12, I was going to use the "Dead Coyote" shells. NEED MORE FEED!!!!!!!!!!!!!!!!!!!!!!!