Factory to me is one of The big dogs turning out truckloads of one model a month. The most accurate Factory 6.5 SIM HELL ANY GUN IN ANY CHAMBERING I ever saw was a Howa Chasis rifle (American Flag Version). Have to tell the story. There were three of us gun geeks testing loads and another guy we know showed up. He is not a gun geek .....at all as in very very inexperienced and few skills. He was waiting and chatting and did not want to shoot saying it would take him too long. Eventually we talked him into it and he was kind off all over the place. He was shooting some 140gr he bought off the internet can't remember the brand. He asked us if we would shoot it and one guy did initially. On his second shot a lot of curse words, and telling the owner it sucked but some guns need certain ammo to shoot. Based on the owners groups (5-6") we all thought the second shot was at least 5" out. The shooters ego was in the way and he asked if he could shoot it again with a clean target. That freaking rifle would shoot under .2's/5 all day long!!! We told him to get his butt home right now, borrow money if he had to, and buy as much of that ammo as he possibly could!!!
Ok, now the real answer. GET A SAVAGE, BROWNING, OR TIKKA.