I have a relativly new AI AE 308 that is having accuracy issues. Im shooting Federal 168 match and had the barrel cut and re-crowned to 22 inchs from a very reputable gunsmith. I have good glass and the rig just wont shoot as good as it should. My shooting partner has the exact same rig, bought at the same time and his is doing the same thing. Any suggestions? Im not even sure what twist the barrel is. Maybe a heavier bullet?