He was shot twice in the jaw/neck, once in the arm and one bullet grazed his torso. He was then shot another four times in the head later after he was already dead.
Get your facts right.
Jaw, neck. Just as bad as a head shot.
Bamber shot him 4 times in the head after the brutal kitchen beating. Nevill would have been knocked out as Bamber hit him so hard the rifle stock broke. However Nevill would have still been breathing, so Bamber shot him 4 times in the head.
The slim chance of Sheila hitting Nevill with a torso shot would not have deterred or stopped him.
Nevill ringing Bamber after Sheila started shooting the twins. Get real.