I have 2 X-caliber barrels. One was a Savage prefit o bought when the company was brand new and the other an AR-15 barrel in 6.5 Creedmoor I bought more recently. Fit and finish on both are amazing and both shoot consistent 1/2 moa with Hornady factory ammo. Hard to beat that. I even hit the milk jug at 1 mile with the savage in 6.5 Creedmoor