OK guys, here's the scoop. we've been working a load up for my buddies 300WSM. We got a load that grouped 1/2 MOA. I loaded up 50 more rounds, and he headed back to the range to sight in, and run through the chrono. Sent me this pic message last night, and it didn't look good. Getting different groups within the group. What could be causing this? Rifle has been glass bedded, trigger done, and he is running a Bushnell Elite, honed rings. He was shooting off a bench. What coupd be causing this?