I'd guess the best way to maintain flat to 800 with 'ol Besse would be to treat her right...like not wasting such a pristine barrel by sighting in. Maybe put one on a target (somewhere on a target) at 50 yds, just to make sure the scope hadn't gotten bumped but certainly why waste the time, money and barrel on shots between 300-800 just to prove what is already known.
Liberalism; The impossible yet accepted notion that it is entirely possible to pick up a turd by the clean end.
