I prefer a flat topped front sight for both Peep and Iron sighted rifles. Skinner makes a good one, easily filed to suit whatever rear sight is installed, and is well made.
I've found that the factory beads found on most all rifles, are not as precise as a flat topped post as they're affected by bright side and overhead lighting. (Groups tend to move away from the bright light due to glare.)
Having been military trained on the old M1 and M16 in my youth, I came to appreciate the precision of that flat topped front sight, freshly blackened with a match or carbide lamp, precisely dividing the peep's aperture. The old saw, "Light up = Sight up", is the trick for lighting conditions...especially with a bead. In use, you crank in a click or two towards the light to compensate for the glare.
For deer and elk hunting in wooded country, I've always used typewriter correction fluid to dab my front sight post. It shows white, contrasts well against deer/elk hair, and reflects no light. When the season's over, you can flick it off with a finger nail to get that plain black post back for target work.
YMMv, Rod