No offense, but this is kind of a stupid question. With modern production in firearms and ammo, every major production gun should be able to outshoot the majority of shooters out there, straight out of the box. I mean sure, with anything produced, even customs unless they are test-fired before leaving, could potentially have some issues. However, these types of production issues are pretty slim from most major manufacturers these days. So, I wouldn't sweat who makes the most accurate out of the box rifle. I would get what you like best and can shoot and roll on. If you get something that isn't shooting up to your standards then you have to eliminate some variables such as, yourself, ammo, scope, etc. At minimum you will have to practice and find a load your rifle likes whether factory or not. Some rifles shoot all kinds of ammo well and some like specific loads and bullet weights. Thats my .02 cents.
***Shit. I just now realized this is a post from 2014!!! Wow.***