RE: Most acurate bolt action
I'm a big fan of Savage rifles. I've found them very hard to beat for the money, but in reality the ones I've owned haven't been any more accurate on average the the Winchester, Remington, etc's that I've owned.
Every Sako (probably 15 or so) and Tikka (only 3)I've owned have been exceptionaly accurate. Exceeding their 1" guarantee has never been a problem with handloads and normally it's been obtainable with premium factory loads.