My experience over the years is with a Kimber, a Savage, a few Remingtons, and a Ruger. These were all "factory" guns, right out of the box. Some were broken in "properly" while others were less fortunate and one was flat out broken. THe most accurate of the bunch was a 2009 Remington VSSF II with the attorney trigger in .223. This was one of the lucky ones that was broken in and today will shoot a group of 52gn Sierra MK's regularly to a half minute and less. The woodchucks on the farm hate this gun, though few get to complain
The Savage is a 22-250 that also shoots very well. But it is a left hand gun and I shoot right hand. Never could get used to it.
The Ruger is accurate to a minute at 100 and is well made. It is a .375 and just isn't fun to shoot hence I just don't use it much.
The Kimber was also accurate to a minute or less but it has too many other issues. I believe this gun was made by the old Kimber of Oregon. Now i'm curious and I'll have to look at it tonight when I get home.
my 2 cents