Shooting low free hand and perfect on the vise tells me you are pulling down instead of staight on the trigger. You may be putting to much finger on it as well. All of use jerk triggers which is why we always brag about our bench shots but hardly evey brag about about our off hand prowness.
Try using your last knuckle of your shooting finger only on the trigger and squeezing the trigger instead of pulling it. By last knuckle I mean the pad of the last part of your trigger finger. Also waste some rounds finding out how much creep to take up before you sqeeze off the round. This will get rid of at least two three inches of your group.
Good luck sounds like you are on your way!!! No noob anymore.
