If you're going to get a 20 gauge, buy the Savage 220F. This is a slug gun built on the famous model 110 rifle receiver . By using the 110 action, this allowed Savage to lock the Model 220's barrel to the receiver just as they do with there centerfire rifles. The barrel is a fully free-floated in a dual pillar-bedded. I live in slug gun country and have shot them all. The top gun smith in my city (who builds custom rifles and pistols) swears it is the best slug gun out there. Unfortunately people get stuck on the names like Remington ,Winchester and Mossberg. This gun has mild recoil, is tight fitting, easy to maneuver and SHOOTS GREAT. When sighting in at my range, I was by far the most accurate shooter at the range that day. It is not because of my ability as a shooter, but rather the quality gun I was shooting. every guy there thought I was shooting a rifle, until they saw the large hole it put on paper. With a good rested shot, and using good slugs like the Barnes tipped expanders, this gun is accurate out to 200 yds. Last year I took 2 deer (80 & 120 yds) this year I took a nice buck at 166 yards, which dropped in his tracks. Even with a rifle, you need to be experienced shooting at longer ranges. If your hunting area is open country with lots of shot opportunities beyond 150 yds, get the rifle. If you choose to go with a slug gun, don't look at any pump gun. Email me if you want more info. Here is a link to an article-
http://www.chuckhawks.com/shooting_slugging_superstar.htm