Hi, you got a great deal. Usually I see these rifles for around $500 for just the rifle without a scope. I have the same rifle in 25-06. From what I've been able to find regarding accuracy there seems to be a couple of things that will cause issues. One, these for the most part do not shoot well with the barrel free-floated, but need a little pressure on the barrel at the tip of the fore end. Second, they are sensitive to how the action screws are tightened. The angled screw should be VERY tight, and the one by the trigger just snug.
Also, the outsourced barrels were on the tang safety M77's. All the MKII's were built in house by Ruger.