I was just curious about you guys that shoot prone without rear sandbags in competition (if there is even a competition like that?). What is an average 5 shot group at 100 yards? I went shooting today and when I was almost done I decided to toss the rear sandbag and see how good I could do. It was at 100 yards. I shot 13 rounds and called it quits. Is this any good? It is very hard to keep the + on the bull!!! Gotta control breathing, heart beat, and a good solid grip without trying to squeeze to hard. I couldnt decide on where I wanted to place my left hand (im right handed). With a rear sandbag I normally bring my left hand on the right side of my chest and 4 fingers under my armpit and thumb up pointed at shoulder. Any tips you guys can give me to help me improve this new shooting method?