I have both the 870 and a Mossberg 500. Both are good guns. I have a rifled slug barrel with a cantilever scope mount on the Mossberg and get 2" groups at 80 yrds. On my 870 I bought the combo back when it was only available with a smooth bore rifle sight deer barrel and a 28 inch field barrel with tubes. I haven't used the Mossberg or the Remington to deer hunt with for years. I now use a 1187 Remington, scope mounted rifled barrel with a Nikon Pro Staff. The 3 1/2 capabilities on either the 870 Super Mag or the 535 doesn't really appeal to me because I don't turkey or water fowl hunt. Not to say that I won't own one someday. I think you'll be happy with either one. I will add that in my opinon the 870 is easier to take down and clean but thats just my opinion. If money is the issue I'd buy the Mossberg.