The better quality guns usually are and should be capable of sub MOA groups. Most sporter weight "afordable" rifles aren't. Although I expect more of my Tikkas, Sakos, etc., I'm happy if my "Remchester" deer rifle shoots 1 1/2" MOA with it's best ammo. Any worse and I sell it off.
I'm am amazed at the amount of rifles shooting 1/4" groups all day long on the internet. I've seen a number of shooters over the years shoot a dozen three shot groups, then pick out the best oneto show people what their rifle will shoot "all day long". I never knew there were so many world class target rifles and world class shooters until I learned about the world wide web