Sorry to say,
But I recently shot several Mini-14's made in the last four or five years. Very reliable functioning, but the same old mediocre accuracy. I get fist-sized groups at 100 yards all the time. If you can get one that groups within 2" at 100 yards, mark your calendar because that is a special event!!
I guess for it's intended use (light utility rifle/police rifle/infrequent use) it is a sucess. It won't hold up to the extended firing that the AR-15 is designed for.
I gave up trying to accurize several stock Ruger Mini-14 a dozen years ago after several thousands of rounds of ammunition and much effort at restocking, rebedding, sight mount changes, etc. that factory barrel is hardly worth calling a barrel!!
I really can't see the point in spending several hundreds of dollars to rebarrel a Mini-14 just to get it to shoot acceptably. The AR-15 design always gets the "nod" when it comes to choosing a semi-auto .223.