When you tighten your receiver screws....First: just "snug" your screws up so the receiver can still move, yet not "slop" about. Second: Hold the rifle straight up so the muzzle is pointed at the sky and give it a few light bumps to ensure the recoil lug is seated agains the stock. Third: ALWAYS tighten the front screw first, and tighten the screws to 40-in\lbs. You can go to 60-in\lbs but higher is not recommended.

Some barrels don't like the Berger bullets. I have one 6.5 that love's 'em, and one that hate's 'em. The one that hate's 'em loves the Hornady 129 SST's. Go figure.

Make sure (double check) that your barrel isn't touching the stock after it gets hot. Remember...."no touching" is always a good rule when it comes to rifle barrels and with boys and your daughter.

Dave