"I have some serious doubts about anyone's ability to convince a jury that a someone 600-800 yards out from the Defendant (because that's what the shooter will be) posed an imminent threat of death or serious bodily harm."
Really? A poacher with a bolt action 7mm magnum scoped rifle that may want me dead is at 600 yards and he is incapable of "posing an immenent threat of death?" With all do respect sir I can hit a basketball at 850 with my 7mm. Stands the reason that they can do the same