Thanks for that reference John. Info like that is invaluable. It pretty much confirms Larry's original information - maybe just because we don't do it, doesn't mean that it isn't a good idea. There wouldn't be a more challenging drilling task than a rifle bore.
Their comments about using an arkansas stone to correct tendency to wander also speaks of removing tiny burrs - if have you ever tried to remove metal with a arkansas stone you'll know it don't remove much for all the effort you put in.
I was thinking about 'drills' with edges that never need a 'break-in' - Slot drills. These are usually much more finely ground than ordinary drills and better ones even honed (like Carbide ones) and I've never seen a burr on them, maybe thats why they don't need it, or maybe they too would benefit from a break-in! - jv