Prior to 1991 Ruger purchased barrels from various vendors. Some were awful, some near match grade. Most somewhere in the middle. You'll get responses all over the place depending on the experiences other shooters had. Between my brother and I we've had 3-4 over the years. All have been acceptable, none were really bad nor exceptional.
As a rule the guns made after 1991 when Ruger started making their own are more consistent. Most newer guns are decent, with few at either end of the spectrum.
