There are a myriad of tricks to try.. partial sizing fired cases will more closely fit the brass to the chamber. Try different loads and bullets. Check the crown and the bedding. Adjust the trigger.?? If you don't load try different brands and bullet weights of ammo to find one that works better. Are you certain the scope is good.. Are you using good benchrest form.. i.e. can YOU shoot better than 2 inches? Pressure bed---free float---the barrel..
