My brother owns this rifle and I have been trying to get it to shoot straight for a few years now. It has a Burris scope on it, that just came back from them and it seems ok. I noticed today the buttstock has a crack running on the right side of the tang down the stock about 2 inches. The crack starts on the inside next to the right side and runs slightly to the left behind the tang. (sorry I don't do pictures) Will this crack affect accuracy. 100 grain RP factory ammo shot 2 shots together high and 2 together 3 inches lower. Any info appreciated. Barlow