I recently purchased a Ruger M77 Hawkeye with the stainless barrel and laminated stock in 300 Win. Mag. I have tried 3 different boxes of ammo from 3 different manufacturers and the best group I can get at 100 yds. is about 2 inches. I have noticed that the stock seems to be very tight to the barrel especially on the right side. I tried the old trick of trying to slide a $1 bill down between the stock and barrel and I can't even get the bill in there. Do you think this could be the cause of my problem?