A person's rifle selection is somewhat purpose based but also has a lot to do with arm-length. I've got the length, for instance, to present an M16A4 at midnight (aim perpendicular to my chest) but most don't and need a carbine for the task. That's only relevant in body armor and those trained without it would feel just as comfortable with a long stock and barrel. For short range a shotgun is always ideal though and that's the standard hunting weapon. If your intent was to leave hunting weapons intact but crack down on those favored by spree killers you'd not succeed, they're effectively identical. People do not hunt with actual sniper rifles much.

Ultimately, with nearly any vaguely modern firearm, time between shots in primarily aiming, so full auto or not is fairly academic.