The fact is most shotguns can be made to fit most people by adjusting stock dimensions and balance. For new shooters, two dimensions are the most critical: drop and length of pull.

Drop is the measurement from where the cheek touches the stock to a line parallel with the rib. The drop must be sufficient so the shooter can see over the rib without lifting their head. Length of pull is measured from the curve of the trigger to the midpoint of the butt or recoil pad. This length must be long enough to keep clearance between the hand and face, but not so long as to hinder mounting or balance.