Accurate to a fault, almost like the 6mm Norma BR. I can get a little over 3900 fps with 52 grain bullets, and typically sub MoA groups.
The barrel does copper up a lot, and accuracy is around 1500 rounds at most.
KFDiesel : You know when a barrel is worn out, when your groups begin to open up. In the case of my 6mm BR, I will change barrels when the average group size goes from .3 inches (5 shots c2c) to over .5. Still accurate for most, but worn out for me. A borescope would be more precise in telling you when the barrel has gone to the happy hunting grounds, but a target is equally effective.
The barrel does copper up a lot, and accuracy is around 1500 rounds at most.
KFDiesel : You know when a barrel is worn out, when your groups begin to open up. In the case of my 6mm BR, I will change barrels when the average group size goes from .3 inches (5 shots c2c) to over .5. Still accurate for most, but worn out for me. A borescope would be more precise in telling you when the barrel has gone to the happy hunting grounds, but a target is equally effective.