Sight pictures--theory & practice

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Sorry to make the title sound like a college class, but I'd like to explore what people think about various handgun sighting systems.

As I understand things, there are five primary iron sighting systems used on handguns and no doubt variations beyond that. If I forget something, feel free to jump in.

1) Rear "notch"/front blade--the old school sights on fixed sight revolvers and early automatics.

2) Rear "bracket"/front dot or blade--As seen on the Glock series or Ruger DA revolvers

3) Rear vertical line/ front dot--The M9 sight picture and seen on some other duty pistols. Heinie, XS and other "dot the i" systems are variants of this concept.

4) Two rear dots/ front dot--One of the most common configurations. Steyr's trapezoid is but a variation on this theme.

5) Adjustable versions of all of the above seem to exist on one platform or other.

Now, also as I understand it, there are two primary sight "holds." The first is sometimes called "dead on," "drive the dots," or other things, like a Beretta 92, you line up the front and rear sights exactly on the part of the target you intend to hit. The main advantage of this hold, to my mind, is that it is intuitive--see it, shoot it.

The other is the so called "six-'o-clock" hold where the front sight is held just below where one intends to hit. My Ruger GP-100 is designed for that hold with the factory sights. The main advantage to this method, again to my mind, is that one is not obscuring the target.

Of course, over distance, both methods require some form of "hold over," or elevation of the front sight to compensate for bullet drop, but that is really not an aspect I want to discuss.

Here is what I'd like to discuss. Which combination of sighting system and sight hold do you find to be the most intuitive for so-called "combat shooting?" IOW, which do you find the easiest to acquire a sight picture on and make an accurate shot with when pressed for time?

Personally, I found that the "six-'o-clock" hold is great for slow fire target shooting, but my speed goes up remarkably driving the dots. Of course, I also find that at close ranges, my Ruger with a rear U shaped bracket and a hi-viz front fiber optic is the quickest to acquire, which has me thinking that maybe the XS "Big Dot" will work pretty well for me for those ranges so long as I don't have to hold it at six.

What are your opinions?
 
Until recently I'd never owned a handgun with three-dot sights. I didn't know if I'd like them when I ordered my Kimber Eclipse, but really do now. It makes sight alignment for slow-fire shooting easier on these old eyes.

And these old eyes are also the reason I changed from a six 'o clock hold to point of impact, point of aim. It's become more difficult for me to see the target crisply, and trying to get a consistent distance between the front sight blade and the bottom of the black is tough.

I now print out my own targets, which have a 4" black circle, and the X-ring is a 1" white dot. That little dot is much easier to see.

But I don't shoot combat anymore, so I don't know if any of the above would make a difference in that discipline for me.
 
mixed bag

i like your #2 rear bracket for making a quick vertical alignment, but it's not that great for horizontal alignment (good enough, though)

most of my pistols have #2 and #4 (ostensibly for using #2 in daylight and #4 at night)

i've got a steyr S9 and it's a great pistol, but i don't care for the sights. i don't find them quick at all.
 
I fight with "old eyes" also. I have tried numerous different sighting options to use for target shooting at the range and also IDPA fast shooting on targets.

The straight on hold works best for me. Less to line up IMO. I find three dots to be too busy for me to align quickly. What workes the best for me is all black Heinie rear with a fiber optic front. I can see the front sight very well if there is good light and if not just seeing the sights looking all black work good for me. This has even worked well when using a flashlight to light the target during low light drills.
 
Except for the rear peep sight (which is rarely used) all the handgun open sighting systems are just a variation of the notched rear and blade front. All the dots, lines, triangles, or what nots are just an attempt to make the sights easier to see. So the fixed or adjustable version of the notched rear and blade front is the 2 primary sighting systems.
 
Wolf, i shot bullseye comp gor years using the six oclock hold. it was the accepted thing and was explained that blackened Patridge sights could be seen better on the white of the target vice the black portion. seems about right, but, since going to "normal" shooting of various critters and targets, i use a dead on sight picture. if i had the comp shooting to do over, i would shoot center hold all the way. just more normal and i found this out too late. YMMV but i shoot center all the way these days and use same picture on silhouette targets, when i take the time to aim.
 
Most of my pistols have three dots, so that is what I am most comfortable with using. My Walther P5 and HK P9S have the vertical line rear sight and front dot sight, I find that they are harder for me to shoot as accurately as the three dot sights.
 
I learned to shoot with a series 70 1911 blade front Bo-Mar rear. I thought it was just peachy until I started using the 3-dot style on my wife's SIG.

The 3 dots (Red on stainless in this case,) are so much faster than the black blade and notch. Sight picture is very quick with those. Next few pistols will have three dots if it can be helped.
 
A 6 o'clock hold is useful if you know the range and target size -- less useful if you will shoot at different targets and differing ranges. It allows precise aiming under ideal conditions.

For other conditions, a revolver is best sighted so the point of impact is slightly above the front sight, and centered.
 
All of my semi-autos have 3-dot sights, and are regulated for a combat sight picture -- put the front dot where you want the bullet to hit. I use a six o'clock hold on all of my revolvers. I also use the six o'clock hold when shooting rifles with ghost ring / front post sights.
 
I think that those of us who understand what "sight picture" means realize that dots, bars, etc., have nothing to do with sight picture, particularly in a combat situation. Planes...it's all about planes. ;)
 
What is this "6 o'clock hold" I keep hearing about?

It's an aiming method developed by target shooters. Imagine a bullseye, a black disk. Attempting to aim at the center is difficult -- it's very easy to be a little high or low in estimating where the center is, and that costs points in a match.

The solution is to aim so the bottom of the bull (the 6 o'clock position) is just touching the top of the front sight. The sights are adjusted so with this hold, the bullet strikes the center of the bull.

Because the bull is rather large, this means a gun so sighted would shoot quite high in the field -- you'd shoot clean over a squirrel if you used a pistol sighted for a 6 o'clock hold.

For field and defense use, the best approach is to "modify" the hold so the bullet hits just above the point of aim -- if the gun had no recoil, you could see the bullet holes appear just at the top edge of the front sight.
 
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