I have had 3 Browning Stainless Stalkers. My first shot decent, my second & current gun is simply ridiculously accurate. I am embarrassed by it because I just pulled it out of the box & bought a box of Winchester Fail Safe bullets & suddenly I was a sharp-shooter. I won't even admit what it shoots because I'd get called a liar. I wanted to shoot Federal Premiums with Nosler Partitions, but when I tried them it wasn't anywhere near as accurate - it was plenty good - probably 1.5" at 100 yards, but not nearly as accurate as the Fail Safes. The Fail Safes are only average speed & frankly have poor ballistics - but I just can't bring myself to shoot anything else out of that gun.
Bottom line - I don't think you can expect any factory gun to shoot groups that fit in a quarter at 100 yards. With some luck & trying several types of ammo & bullets you can get them to shoot plenty good for hunting.
Couple other comments on this gun (sorry if this is more than you want to hear). I put solid scope mounts on it - not the adjustable rear type. I was more careful with the mounting of this scope than any other I've done & I was very meticulous when breaking in the barrel - lots of cleaning in between shots. I don't know if any of that is part of why it shoots so well, but I'll do it everytime I get a new gun from now on. I also drilled and tapped the set screw on the trigger & have it set at about 3lbs.
My 3rd gun is still in the box (I got a deal on a clearance sale) and if, heaven forbid, anything happens to my current gun, and Browning has quit making them, I'll have a backup.
If you can't tell, I'm a huge Browning A-bolt fan & until one of them lets me down, I won't shoot anything else.
Good luck with your new toy!
Guy