I'm pretty sure it doesn't involve magic but have you ever tried to ream out something as small and fragile as a peep sight? You can't stick it in a vice 'cause it's plastic and will deform from the crush of the vice which will only give you an egg anywaywhen you're done drilling. Then when you're holding it with one hand and drilling with the other, the drill bites and twists the peep out of the grip of your fingers. Drilling something like 1/8 out to 3/16 might be simple 'cause there's alot of meterial to work with. With a 1/4 peep, the wall is already thin as it is. I'd like to see someone drill one out freehand and have the arpeture anddrill anglebe straight and true all the way through.

Another thing you probably didn't think about with your last post is that manufacturers design their peeps with a minimum wall thickness depending on the tensil strength of the material used. A 3/16 peep is not cut out of the same stensil that a 1/4 is. You know this because you've seen smaller peeps having less bulk to them. I know this because I'm looking at the two sizes. What I'm saying is that if you drill the 1/4 stensil out to 9/32 the wall collapses in a week of shooting. I've done it time and again to different peeps with identical results.