jayman wrote:Thanx for your answers.
A lot of stuff that you suggested to me, but I have no idea about it.
To become clearer I have two basic questions:
1. There are this small little sights, big as a coin, and there are these who look like a pocket light, with a cylindric body.
Which type is good for what?
2. How big has the point to be for using it on 25 feet?
Thanks to all so far,
J.
Sorry, I didn't have time to answer this one earlier. I'll give it a go now.
There are some small red dot sights that appear like small projection screens, these are knows as "reflex" or "miniature reflex" sights. Typically they fit in a pistol's rear dovetail and are very lightweight.
source:www.trujicon.com
Sights like this are good for quickly acquiring targets as they're open and the shooter can see clearer downrange. In falling plate shooting this would be considered an advantage as one has to engage a series of metal plate targets as rapidly as possible.
This style of sight uses an open projection system and can be compromised by dirt or oils getting onto the screen area. The inside curved screen can be a little more difficult to clean than the outer curved screen. It can also be more susceptible to interference from bright light conditions with the open projection system.
The cylindrical body style red dot sights, ones that appear more like a traditional scope, are more often used as static style target sights. This is not to say that they cannot be used for plates but tend to restrict the shooter's downrange field of view a little more than the reflex style.
source:Midwayusa.com
These type red dot scopes also use light projection but the image is contained with a hermetically sealed scope body tube. I believe this is the small flashlight look you were describing. There are a variety of diameters for this style of sights from small 25mm to large 42mm. The larger tubes allow for a wider field of view but the trade off may be more weight to the pistol. This style sight is enclosed and tends to resist bright exterior lighting more than the reflex sight style.
Each style has an ability to vary the dot intensity and adapt to differing light conditions. Both come in a variety of dot sizes some brands even have adjustable sized dots for the shooter who wants to change the sizes. The size of the dot is more up to the preference of the shooter. I myself, prefer the smallest diameter dot possible when I'm shooting but then again I'm going for shot placement, not simply hitting a target in a generalized zone as rapidly as possible. The bigger the dot size, the more of the target that is obscured by it.
Red dot style sights have a tremendous advantage in that the shooter doesn't have to maintain alignment between two different points to successfully hit a target. The shooter just has to keep the dot relatively centered in the lens and place the bright dot on the target to hit it. This greatly increases the speed at which a shooter can acquire and engage a target or series of targets.
R,
Bullseye