"Jesse reached under his coat, pulled out a revolver, and cocked the hammer. 'Cox,' he said with a curse, thinking he was talking to Samuel P. Cox, 'caused the death of my brother Bill Anderson, and I am bound to have my revenge.' He aimed the barrel at the cashier's chest and squeezed the trigger. The ear-splitting crack would have echoed in that small room, flame from the slow-burning black powder leaping Out of the muzzle as the bullet tore straight through the man's heart. Before the cashier could topple from his chair, Jesse aimed squarely at his forehead and fired again. A startled (Attorney William A.) McDowell leaped for the door. Jesse wheeled and snapped off two quick shots, one of them tearing through the lawyer's arm as he darted to safety." (7)
Analyzing the above as Stiles reconstructs it from his research, we note when Jesse James aimed and squeezed, he hit heart and brain. Two shots, two decisive hits. "Snap-shooting" with an equal number of rounds, he scored one miss and one non-neutralizing peripheral hit.