A couple of thoughts. The reason the Big Dot sights fail to be accurate at beyond 10-15 yards is that the size of the dot is too big. At moderate distance, the dot, superimposed on the target, completely covers the target and there is no reference point then to center the front sight on the target (or between the edges of the target, if you will). Also, I have found that the "V" rear sight is too shallow.
For the last 2 years I have used Prosights. They have 2 advantages in my opinion. 1. The front sight is of "normal" size, but it become extremely visible and fast to pick up due to the red fiber optic in the front sight. I found that I can pick up and am aware of the front sight way before I get a "perfect" sight picture. Also, the "V" rear sight (which is fully adjustable) is a bit deeper, which allows for precise shoots. I do not find my accuracy suffers with these sights. I have engaged targets successfully at distance (30-40 yards)and have seen targets engaged at 100 yards.
Hope this helps.
Howard Benz
Memphis, TN
Below is a link for pictures of the sights.
http://www.pistolsmith.com/viewtopic.ph ... 12&forum=8
Also, Check out this web page.
http://www.tacticalshooting.com/pages/video.htm
It provides Also there are several video clips of the sights in action!
Respectfully,
Howard Benz - Memphis
<font size=-1>[ This Message was edited by: benzh on 2001-07-19 21:10 ]</font>