What are you considering factory? untouched action, trigger, and barrel or completely untouched out of the box rifle. With handloads my savage .270 shoots consistently .500 to .750" with the occasional 5 round group outside of that range, but I have replaced the stock, installed pillars and bedded the action. And that is with handloads. With factory ammo the best I can get on a consistent bases is around 1.250" with a deviation of probably .500" either way.
Many many times I have had buddies claim they had a "tack driver" only to go to the range find 1.500" groups or worse.