Of my 500 series rifles, I put a 541-S bbl. and trigger on a 581L action, and hunted with it for many years, it's very accurate. To be honest, I really don't know "how" good it shoots, because I never shoot for groups with it.
Back in the olden days, I shot small bore postal league competition, with a 540XR and did pretty good at that time. Some shooters in that club out moneyed me, (and many others) and almost always won our shoots by having all the latest expensive gear and top of the line Anschutz rifles. Those days, I always "wished" I had the money for an Anschutz 54 target rifle!
BUT, it did make me feel better when I could beat any of them in the small bore pistol shoots! My High Standard Victor was and still is, an absolute tack driver!
DM