Nope. You are all cheating. A shotgun is not a rifle so you all have to add another rifle to your list.
My revised list:
22lr sporter - fixed 4x 40 scope for small game and target practice. If you can't get good aim with a 4x scope then it's too far away for the 22lr any way.
223rem varmint barrel - 3-15x50 varminting small & light game out to 300yd or more
243 varmint bolt carbine - 2-10x40 loaded with something in the range of a fast 90gn pill for light & medium game upto tough old goats and smaller pigs. Short varmint weight barrel makes it carriable while being able to handle sustained accurate fire on a mob of goats or, say, a pack of dogs out yonder at a waterhole.
308 pump carbine - 2moa red dot sight, loaded slightly down with 150gn for fast action on big mobs of pigs or other tough ferals either close in or out to 200m.
7-08 light hunter - 2-10x40. Not much will stand up to one well placed 162gn Amax travelling a little over 2700fps.
I think that covers it for now. I'll probably change my mind again when this topic pops up again in a few months