I've had a stainless heavy barrel 22-250 Encore for a couple decades. It has been one of the most consistently accurate rifles I have ever owned. 50 or 55 Nosler BT and a stout load of AA 2460 work nicely. After break-in, the bore was moly coated and all bullets have been coated in my tumbler.
A TC blued 30/06 barrel that I also had would not shoot worth a darn. A lot of powder was burnt in vain trying to find a decent load.