I have recently gotten back into bolt action shooting. My setup is in my signature. I have fired 80 rounds since I got her. When shooting from the bench with the bipod, I am experiencing the rifle jumping from the point of aim to two targets to my right (at the range) usually after pulling the trigger. I am holding the rifle tight to my shoulder with my cheek planted on the riser and my free hand squeezing the two sandbags under the palm swell of the rifle to manipulate the point of aim vertically. (Damn that was a long sentence) Should I be gripping the fore end to control recoil? If you were wondering, the rifle weighs 12 lbs all together. I would say with all the groups I have shot, I am averaging 1" 5-shot groups. I have shot several sub half MOA 3 shot groups but they usually open up after the 4th and 5th shot. I have noticed that it gets super accurate when the barrel (or maybe me) warms up a bit. Is this barrel jump hurting my accuracy? How can I fix this problem?