Re: most accurate out of the box factory rifle?
The best buy is probably the Savage no doubt. The most accurate factory rifle and I'm not going to talk rimfires because there are so many that hammer, who knows which is best. For centerfire rifles and I'm going to kick out PPCs and stick to hunting sized bores, this is LONG RANGE HUNTING.com, right? I strongly say its a tie between Steyr and Sako. These both shoot about as well as can be had in a rifle factory or otherwise.
I see the groups on the pages of this thread, I'm not going to knock anyone real hard, everyones proud of there guns, but a 1/2 MOA gun isnt really a contender. I've seen Steyr and Sako rifles in .308 and a few other calibers flat put them all in one hole. Hunting rifles. SSGs and TRGs are even more amazing. There are ringers to be found from Remington, Winchester, Kimber, Weatherby, Browning....any factory may produce a great gun, once in a while, but I've seen SO many of these Steyrs and Sakos shoot SO well and with any good ammo you put in it.
I'm a gunsmith and I build long range rifles so it pains me to say that its hard to build a custom gun to beat these factory guns. It can be done and sometimes cheaper but its darn tough. I love my Remingtons, Winchesters, Brownings and they all shoot well or they'd be gone, but my vote is for a tie between Steyr and Sako. I can't say one is more accurate than the other.