Stability is much harder to achieve with a handgun, since it lacks the extra point of contact afforded by a rifle stock.
Starting with feet shoulder width apart and a “nose over toes” forward lean, the arms are extended straight outward from the chest so the handgun’s sights are raised to meet the plane between the dominant eye and the target. Elbows are not fully locked to allow for recoil.
The strong hand is placed as high up on the grip as possible, with the trigger finger resting straight along the frame. The gun is in alignment with the wrist and forearm. The fingers of the weak hand are wrapped around those of the strong hand, with the weak hand thumb placed forward on the frame until it forms a plane with the weak side wrist and forearm. The strong side thumb rests on the heel of the weak side palm. Both hands apply firm and even pressure, and together they fully enclose the grip with as much skin to grip contact as possible.