I've had the pleasure of shooting quite a few different accurate factory rifles. One that stands out is a Bergara in 7mm Rem Mag. The handloads I put through it were high velocity and very accurate, using Hornady's 150 grain ELD-X and IMR 8133. Here's the 100 yard target:

[Linked Image from i.imgur.com]

Helped a new shooter/hunter sight in her 308 Win, a Weatherby Vanguard "Camilla" - and I was amazed that it was shooting sub 1" groups at 200 yards! From the bench, with Federal factory 165 grain hunting ammo! Not every group was that small, but several were. Really nice rifle right out of the box.

That's just a couple that worked out very well. Have also had great results with Remington 700's, Winchester Model 70's, Savage bolt actions, and more. Have the distinct impression that most of today's hunting rifles can produce very nice accuracy right out of the box, or perhaps with minor tuning.

Regards, Guy