Thread: Problematic 6mm Remington

take it apart...and carefully look at mag box..make sure its sitting on bottom metal and not twisting when it goes back together...make sure there is no crap in below recoil lug...and carefully do screws up firmly....
it should not shoot that badly....and if gunsmith said it looks ok....it should be ok......I mean most worn out .303 BRITS WILL DO BETTER than that,there is something really out of whack here.