Well it starts with the stock, it's gotta fit just right, then the trigger, It's gotta break with just the right amount of pressure #2 does it for me, it can't have any creep or over travel. then the action has to be as smooth as a babies but and the bolt has got to feel as if it just falls in place. then the Barrel it's gotta have enough mass to aid in stability and long enough to get the bullet moving, and provide a complete burn, being manufactured with top quality. Now for the glass, It's has got to have sufficient adjustment to take full advantage of the bullets range, while providing sufficient eye relief and a large exit pupil, a sharp clear image and a good magnification, with a reticle that can pull double duty as BDC in a pinch and provide reticle ranging capabilities just for backup. After that I really couldn't care what it's chambered in be it 7mag or up to 338 AM, cause it's gonna work either way. That rifle would be just about as close to perfect as can be.