Meddybumps,
I've owned around a dozen No. 1's since Ruger started making their own barrels in the 1990's chambered in rounds from the .22 Hornet to .375 H&H, including maybe four 1A's. All have shot well, about half of them right out of the box. The other half shot just as well after very simple rebedding of the forend, consisting of using a fine file to eliminate any "high" spots at the rear of the forend, where it butts up against the front of the receiver, plus a dab of epoxy bedding compound at the forend tip, to keep it stable.
Don't recall even one that didn't shoot into an inch for 3 shots at 100 yards with at least one load, and some have been better. My .22 Hornet 1B started putting five shots in an inch right out of the box, and with the right handloads will put five in half an inch.
