Originally Posted by HuntnShoot
Originally Posted by Exchipy
[Linked Image from i.postimg.cc]
Interesting. I hadn't considered the depth of the rear sight notch being such a factor in shot dispersion, but the "light bulb" has turned on. Cool. Thanks for the insight. That explains some results I've been getting with my older eyes.
Learned that secret as a youngster with a Model 15 PPC revolver set up like this:
[Linked Image from i.postimg.cc]
That rear sight blade is actually intended for a S&W Model 41 semi-auto .22LR target pistol. As properly installed in that pistol, angling to the rear, it presents the usual S&W shallow notch without any reflection. However, when installed straight up in a revolver sight, as shown here, the notch is presented as much deeper.

The rear sight blade on that 2” 63, was made from a taller blade intended for an adjustable rear sight on 3rd Generation S&W semi-auto, by simply filing the notch deeper.

Every day’s an adventure.