Groupings? HELP!!!

[ringo]

My experience is similar to Baylian. I am a right handed shooter and got the same erratic results as you did. I sandbag my forestock and place my left index finger on the barrel at that point, and that stabilized my groups to sub MOA. Before I just let the forestock sit supported only by the sandbag, tucking my left hand under the stock butt, not realizing the squeeze on the trigger is sufficient to cause enough motion although seemingly unnoticed to create stringing. I too have been a victim.