Another, more general comment is that I prefer to use a bead front sight on my hunting rifles, rather than the "more accurate" post, because a bead allows an easier guesstimate of range, by comparing its diameter to the body of the animal in question.
Posts can be more accurate, if we're taking about group size on a paper target--though that's not necessarily true, especially with a globe sight on a round bullseye. (A lot of "accuracy" depends on an appropriate target for the sights.)
But when hunting big game with irons I'm far more interested in putting a bullet through the middle of the lungs than putting one into the "correct" hair. And for that I prefer a very visible bead, whether brass or white--or even fiber-optic. I used the original factory brass bead, filed as described, on my pre-'64 Model 70 .270 for that 350-yard caribou. As noted, it worked fine.
