When I go to an indoor shooting range almost everybody puts up their targets at either five or 7 yards. Rarely do people go 10 yards, even more rarely do they go 50 feet. And pretty much nobody shoots at 25 yards unless they're shooting a full sized silhouette target and shooting a full-size duty pistol--these are probably law enforcement officers or security guards who are practicing for an upcoming qualification shoot. Shooting from 5 or 7 yards makes sense if your goal is to become proficient in the defensive use of a handgun for personal protection. Whether you shoot an armed intruder in your home or out on the street in the alley or parking garage, or you interrupt an armed robbery in progress at the local liquor store, you are likely to fire from no more than 7 yards or 21 feet. BUT even modern combat handguns --whose sights are significantly larger and higher-visibility then generations ago-- are too small and too precise for most people to use effectively during rapid fire, at close range. All the popular mass produced handguns on the market today, whether they're revolvers or semi autos, and whether they have fixed sights or adjustable sights--have tiny little notches in the rear sights. A narrow little notch barely allows any light to be seen on either side of the front sight. It's not fast. It's not easy to acquire for a well-aimed but fast shot, and it's not even easy to get a glimpse of during what might be called a "flash sight picture." Sure, with good training in a lot of practice you can get good with it. And modern handgun sights have a rear sight that's a little bit bigger than what our grandfathers used to have to deal with in the early 1900s through the 1960's. But what we have today is still far from ideal. Instead the sights on today's guns are the correct proportions for bull's-eye shooting Camp Perry style out to 50 yards, or 50 meters. They are the wrong size and shape for fast shooting at 7 yards or 10 yards. (They are often the wrong color, too, being all black or all silver. But that's a different issue. Many companies are offering colored dots or contrasting colored lines on their sights. Some factory-supplied sights are this way, and for many models of guns aftermarket colored sights are available. So, the color and visibility problem can be fixed fairly easily on guns that have user-replaceable sights. But the same cannot be said for the dimensions of the sights themselves, and particularly the width of the notch in the rear sight blade.) DOES ANYBODY KNOW if There has been an experiment a study a test comparing how shooters with low to medium levels of experience react to testing to guns that are otherwise identical except for the size of the open sights? The guns have to be identical --same barrel length; same weight of the handgun; same size and shape of the grip; same trigger pull; same caliber. The sights should have the same color scheme, and if they use dots or lines that should be identical. Everything the same except for the physical size of the rear sight and the notch that you look through to see the front sight. You know how are modern trend in combat shotguns is to have a "ghost ring" rear peep sight? Well, think of the same concept, trying to achieve the same advantages as a ghost ring setup, but apply it to handguns. Of course it would feature an open Patridge style sight, not a circular sighting disc or aperture sight.