When shooting off the bench - sitting almost sideways to the rifle, not sitting facing forwards. Both feet FLAT on the ground- comfortably. Both elbows on the bench. I grasp the rifle at the foreand where I hold it for offhand shooting, and rest the back of THAT hand on the sand bag of the adjustable front rest. If teh front rest is not adjustable, you cannot fine tune the elevation required for the most comfortable position. Thus, your body must conform and that opens groups.
Good solid Bench Technique is VERY important for shooting good groups. This is why some guys shoot as well from hunting positions as they do from the bench- Taylor used to be one of those, but now, with practice he shoots very well from the bench- !@*% - too bad he didn't lose his offhand capabilities at the same time. Just kidding.
SRY- they are not ml's- but close by around 30years.
Left hand resting on the bag. Sitting almost at 90 degrees but turned towards the rifle at the waist.
Taylor is sitting more in line with the rifle and resting the forend on the bag. This gives elevation to the point of impact, normally, compared to shooting off one's hand. One of my rifle's shoots 3" higher if held like this, at 100yards than when hand held. Hand held shoots the same as offhand, for me.