i currently will use both. it depends on where i hunt and the laws on what you can use and so on. if you are going to hunt somewhere where rifle is acceptable AND you have a potential shot of over 100 yards then go with a rifle. but, if you live somewhere where you are not going to get a shot over 100 yrds. then the possibilty of using a slug gun is there. i would prefer a rifle just because it is going to be more accurate and will leave a cleaner shot. as far as cal/gauge rifle id use a .270 bolt action and for slug id use a 12 gauge without a question.