I bought a Ruger M77 .243Win in the late 1960s. That rifle has taken uncounted numbers of groundhogs, prairie dogs, fox and half a dozen deer and it still will groups under 1" at 100yds, from the bench.
The only Ruger that I have owned that did not group well was a No.1 in 7mmRemMag. That model had some issue with how the forestock was mounted. I did not get to the bottom of that problem and just sold the rifle.