I got this barrel in 6 Creedmoor and 1-7.5 twist 5R. Built it with a Boyd's at one stock on a Ruger American action, fully bedded and free floated. When breaking in the barrel with Hornady Varmint express ammo got 0.3 MOA. After break in got 0.3 MOA with Berger 109gr and N555 on first round of load development. Built this as a practice platform for F-class and might be my new gun for competition.