as WebFos said, accuracy is relative. everyone has different degrees or definitions of what they consider accurate, especially when talking about rifles and cartridges.
a target shooter getting a 3/4" group at 600 yards would consider that very poor accuracy, while a hunter geting the same groups at the same distance would be thrilled to death at that level of accuracy. a military sniper able to achieve 10" groups on a man sized target at 1500 yards would probably think that was acceptable accuracy as long as it was consistent.
as far as ourselves, it also depends on how much we as a shooter are willing to do to achieve our personal degree of accuracy. many do a lot of shooting and practice, while many of us will tinker with our rifles, and many reload to get that final little bit from our rifles.
my final thoughts are that IMO, most guns are far more accurate than the pwople who own them. most of us are not capable of realizing the full potential of the guns we own, myself included. but we should never stop striving to better ouselves as shooters trying to get everything we can out of one. besides, isn't that part of what we love about shooting? the guns, the shooting and the everything associated with it.