The trouble with the bench is it is too easy to become attached to it. Oh, i am testing to get my very best load. Oh, i need to tweak this and that until all one wants to do is test and tweak when most couldnt tell the diffrence between a lod that is a 1.5 incher at 25 or a 2 incher shooting offhand. Then we see the better results in shooting from the bench and one couldnt be pried up off it with with a ten foot rail and concrete block.
Find a decent load, get up and start shooting on your legs and with only your arms and hands.